diff --git a/example/amd/js/libs/postal/postal.js b/example/amd/js/libs/postal/postal.js
index 62f4dad..25511c7 100644
--- a/example/amd/js/libs/postal/postal.js
+++ b/example/amd/js/libs/postal/postal.js
@@ -9,6 +9,7 @@ define(['underscore'], function(_) {
 var DEFAULT_EXCHANGE = "/",
     DEFAULT_PRIORITY = 50,
     DEFAULT_DISPOSEAFTER = 0,
+    SYSTEM_EXCHANGE = "postal",
     NO_OP = function() { },
     parsePublishArgs = function(args) {
         var parsed = { envelope: { } }, env;
@@ -90,11 +91,24 @@ var SubscriptionDefinition = function(exchange, topic, callback) {
     this.maxCalls = DEFAULT_DISPOSEAFTER;
     this.onHandled = NO_OP;
     this.context = null;
+
+    postal.publish(SYSTEM_EXCHANGE, "subscription.created",
+        {
+            event: "subscription.created",
+            exchange: exchange,
+            topic: topic
+        });
 };
 
 SubscriptionDefinition.prototype = {
     unsubscribe: function() {
         postal.configuration.bus.unsubscribe(this);
+        postal.publish(SYSTEM_EXCHANGE, "subscription.removed",
+            {
+                event: "subscription.removed",
+                exchange: this.exchange,
+                topic: this.topic
+            });
     },
 
     defer: function() {
@@ -221,109 +235,131 @@ var bindingsResolver = {
 
 var localBus = {
 
-    subscriptions: {},
+	subscriptions: {},
 
-    wireTaps: [],
+	wireTaps: [],
 
-    publish: function(data, envelope) {
-        _.each(this.wireTaps,function(tap) {
-            tap(data, envelope);
-        });
+	publish: function(data, envelope) {
+		this.notifyTaps(data, envelope);
 
-        _.each(this.subscriptions[envelope.exchange], function(topic) {
-            _.each(topic, function(binding){
-                if(postal.configuration.resolver.compare(binding.topic, envelope.topic)) {
-                    if(_.all(binding.constraints, function(constraint) { return constraint(data); })) {
-                        if(typeof binding.callback === 'function') {
-                            binding.callback.apply(binding.context, [data, envelope]);
-                            binding.onHandled();
-                        }
-                    }
-                }
-            });
-        });
-    },
+		_.each(this.subscriptions[envelope.exchange], function(topic) {
+			_.each(topic, function(binding){
+				if(postal.configuration.resolver.compare(binding.topic, envelope.topic)) {
+					if(_.all(binding.constraints, function(constraint) { return constraint(data); })) {
+						if(typeof binding.callback === 'function') {
+							binding.callback.apply(binding.context, [data, envelope]);
+							binding.onHandled();
+						}
+					}
+				}
+			});
+		});
+	},
 
-    subscribe: function(subDef) {
-        var idx, found, fn;
+	subscribe: function(subDef) {
+		var idx, found, fn, exch, subs;
 
-        if(!this.subscriptions[subDef.exchange]) {
-            this.subscriptions[subDef.exchange] = {};
-        }
-        if(!this.subscriptions[subDef.exchange][subDef.topic]) {
-            this.subscriptions[subDef.exchange][subDef.topic] = [];
-        }
+		exch = this.subscriptions[subDef.exchange] = this.subscriptions[subDef.exchange] || {};
+		subs = this.subscriptions[subDef.exchange][subDef.topic] = this.subscriptions[subDef.exchange][subDef.topic] || [];
 
-        idx = this.subscriptions[subDef.exchange][subDef.topic].length - 1;
-        if(!_.any(this.subscriptions[subDef.exchange][subDef.topic], function(cfg) { return cfg === subDef; })) {
-            for(; idx >= 0; idx--) {
-                if(this.subscriptions[subDef.exchange][subDef.topic][idx].priority <= subDef.priority) {
-                    this.subscriptions[subDef.exchange][subDef.topic].splice(idx + 1, 0, subDef);
-                    found = true;
-                    break;
-                }
-            }
-            if(!found) {
-                this.subscriptions[subDef.exchange][subDef.topic].unshift(subDef);
-            }
-        }
+		idx = subs.length - 1;
+		if(!_.any(subs, function(cfg) { return cfg === subDef; })) {
+			for(; idx >= 0; idx--) {
+				if(subs[idx].priority <= subDef.priority) {
+					subs.splice(idx + 1, 0, subDef);
+					found = true;
+					break;
+				}
+			}
+			if(!found) {
+				subs.unshift(subDef);
+			}
+		}
+	},
 
-        return _.bind(function() { this.unsubscribe(subDef); }, this);
-    },
+	notifyTaps: function(data, envelope) {
+		_.each(this.wireTaps,function(tap) {
+			tap(data, envelope);
+		});
+	},
 
-    unsubscribe: function(config) {
-        if(this.subscriptions[config.exchange][config.topic]) {
-            var len = this.subscriptions[config.exchange][config.topic].length,
-                idx = 0;
-            for ( ; idx < len; idx++ ) {
-                if (this.subscriptions[config.exchange][config.topic][idx] === config) {
-                    this.subscriptions[config.exchange][config.topic].splice( idx, 1 );
-                    break;
-                }
-            }
-        }
-    },
+	unsubscribe: function(config) {
+		if(this.subscriptions[config.exchange][config.topic]) {
+			var len = this.subscriptions[config.exchange][config.topic].length,
+				idx = 0;
+			for ( ; idx < len; idx++ ) {
+				if (this.subscriptions[config.exchange][config.topic][idx] === config) {
+					this.subscriptions[config.exchange][config.topic].splice( idx, 1 );
+					break;
+				}
+			}
+		}
+	},
 
-    addWireTap: function(callback) {
-        this.wireTaps.push(callback);
-        return function() {
-            var idx = this.wireTaps.indexOf(callback);
-            if(idx !== -1) {
-                this.wireTaps.splice(idx,1);
-            }
-        };
-    }
+	addWireTap: function(callback) {
+		var self = this;
+		self.wireTaps.push(callback);
+		return function() {
+			var idx = self.wireTaps.indexOf(callback);
+			if(idx !== -1) {
+				self.wireTaps.splice(idx,1);
+			}
+		};
+	}
 };
 
 var postal = {
-    configuration: {
-        bus: localBus,
-        resolver: bindingsResolver
-    },
+	configuration: {
+		bus: localBus,
+		resolver: bindingsResolver
+	},
 
-    channel: function(exchange, topic) {
-        var exch = arguments.length === 2 ? exchange : DEFAULT_EXCHANGE,
-            tpc  = arguments.length === 2 ? topic : exchange;
-        return new ChannelDefinition(exch, tpc);
-    },
+	channel: function(exchange, topic) {
+		var exch = arguments.length === 2 ? exchange : DEFAULT_EXCHANGE,
+			tpc  = arguments.length === 2 ? topic : exchange;
+		return new ChannelDefinition(exch, tpc);
+	},
 
-    subscribe: function(exchange, topic, callback) {
-        var exch = arguments.length === 3 ? exchange : DEFAULT_EXCHANGE,
-            tpc  = arguments.length === 3 ? topic : exchange,
-            callbk  = arguments.length === 3 ? callback : topic;
-        var channel = this.channel(exch, tpc);
-        return channel.subscribe(callbk);
-    },
+	subscribe: function(exchange, topic, callback) {
+		var exch = arguments.length === 3 ? exchange : DEFAULT_EXCHANGE,
+			tpc  = arguments.length === 3 ? topic : exchange,
+			callbk  = arguments.length === 3 ? callback : topic;
+		var channel = this.channel(exch, tpc);
+		return channel.subscribe(callbk);
+	},
 
-    publish: function(exchange, topic, payload, envelopeOptions) {
-        var parsedArgs = parsePublishArgs([].slice.call(arguments,0));
-        var channel = this.channel(parsedArgs.envelope.exchange, parsedArgs.envelope.topic);
-        channel.publish(parsedArgs.payload, parsedArgs.envelope);
-    },
+	publish: function(exchange, topic, payload, envelopeOptions) {
+		var parsedArgs = parsePublishArgs([].slice.call(arguments,0));
+		var channel = this.channel(parsedArgs.envelope.exchange, parsedArgs.envelope.topic);
+		channel.publish(parsedArgs.payload, parsedArgs.envelope);
+	},
 
-    addWireTap: function(callback) {
-        this.configuration.bus.addWireTap(callback);
-    }
+	addWireTap: function(callback) {
+		return this.configuration.bus.addWireTap(callback);
+	},
+
+	bindExchanges: function(sources, destinations) {
+		var subscriptions = [];
+		if(!_.isArray(sources)) {
+			sources = [sources];
+		}
+		if(!_.isArray(destinations)) {
+			destinations = [destinations];
+		}
+		_.each(sources, function(source){
+			var sourceTopic = source.topic || "*";
+			_.each(destinations, function(destination) {
+				var destExchange = destination.exchange || DEFAULT_EXCHANGE;
+				subscriptions.push(
+					postal.subscribe(source.exchange || DEFAULT_EXCHANGE, source.topic || "*", function(msg, env) {
+						var destTopic = _.isFunction(destination.topic) ? destination.topic(env.topic) : destination.topic || env.topic;
+						postal.publish(destExchange, destTopic, msg);
+					})
+				);
+			});
+		});
+		return subscriptions;
+	}
 };
 
 return postal; });
\ No newline at end of file
diff --git a/example/standard/js/postal.js b/example/standard/js/postal.js
index 9894230..2c04166 100644
--- a/example/standard/js/postal.js
+++ b/example/standard/js/postal.js
@@ -9,6 +9,7 @@
 var DEFAULT_EXCHANGE = "/",
     DEFAULT_PRIORITY = 50,
     DEFAULT_DISPOSEAFTER = 0,
+    SYSTEM_EXCHANGE = "postal",
     NO_OP = function() { },
     parsePublishArgs = function(args) {
         var parsed = { envelope: { } }, env;
@@ -90,11 +91,24 @@ var SubscriptionDefinition = function(exchange, topic, callback) {
     this.maxCalls = DEFAULT_DISPOSEAFTER;
     this.onHandled = NO_OP;
     this.context = null;
+
+    postal.publish(SYSTEM_EXCHANGE, "subscription.created",
+        {
+            event: "subscription.created",
+            exchange: exchange,
+            topic: topic
+        });
 };
 
 SubscriptionDefinition.prototype = {
     unsubscribe: function() {
         postal.configuration.bus.unsubscribe(this);
+        postal.publish(SYSTEM_EXCHANGE, "subscription.removed",
+            {
+                event: "subscription.removed",
+                exchange: this.exchange,
+                topic: this.topic
+            });
     },
 
     defer: function() {
@@ -221,109 +235,131 @@ var bindingsResolver = {
 
 var localBus = {
 
-    subscriptions: {},
+	subscriptions: {},
 
-    wireTaps: [],
+	wireTaps: [],
 
-    publish: function(data, envelope) {
-        _.each(this.wireTaps,function(tap) {
-            tap(data, envelope);
-        });
+	publish: function(data, envelope) {
+		this.notifyTaps(data, envelope);
 
-        _.each(this.subscriptions[envelope.exchange], function(topic) {
-            _.each(topic, function(binding){
-                if(postal.configuration.resolver.compare(binding.topic, envelope.topic)) {
-                    if(_.all(binding.constraints, function(constraint) { return constraint(data); })) {
-                        if(typeof binding.callback === 'function') {
-                            binding.callback.apply(binding.context, [data, envelope]);
-                            binding.onHandled();
-                        }
-                    }
-                }
-            });
-        });
-    },
+		_.each(this.subscriptions[envelope.exchange], function(topic) {
+			_.each(topic, function(binding){
+				if(postal.configuration.resolver.compare(binding.topic, envelope.topic)) {
+					if(_.all(binding.constraints, function(constraint) { return constraint(data); })) {
+						if(typeof binding.callback === 'function') {
+							binding.callback.apply(binding.context, [data, envelope]);
+							binding.onHandled();
+						}
+					}
+				}
+			});
+		});
+	},
 
-    subscribe: function(subDef) {
-        var idx, found, fn;
+	subscribe: function(subDef) {
+		var idx, found, fn, exch, subs;
 
-        if(!this.subscriptions[subDef.exchange]) {
-            this.subscriptions[subDef.exchange] = {};
-        }
-        if(!this.subscriptions[subDef.exchange][subDef.topic]) {
-            this.subscriptions[subDef.exchange][subDef.topic] = [];
-        }
+		exch = this.subscriptions[subDef.exchange] = this.subscriptions[subDef.exchange] || {};
+		subs = this.subscriptions[subDef.exchange][subDef.topic] = this.subscriptions[subDef.exchange][subDef.topic] || [];
 
-        idx = this.subscriptions[subDef.exchange][subDef.topic].length - 1;
-        if(!_.any(this.subscriptions[subDef.exchange][subDef.topic], function(cfg) { return cfg === subDef; })) {
-            for(; idx >= 0; idx--) {
-                if(this.subscriptions[subDef.exchange][subDef.topic][idx].priority <= subDef.priority) {
-                    this.subscriptions[subDef.exchange][subDef.topic].splice(idx + 1, 0, subDef);
-                    found = true;
-                    break;
-                }
-            }
-            if(!found) {
-                this.subscriptions[subDef.exchange][subDef.topic].unshift(subDef);
-            }
-        }
+		idx = subs.length - 1;
+		if(!_.any(subs, function(cfg) { return cfg === subDef; })) {
+			for(; idx >= 0; idx--) {
+				if(subs[idx].priority <= subDef.priority) {
+					subs.splice(idx + 1, 0, subDef);
+					found = true;
+					break;
+				}
+			}
+			if(!found) {
+				subs.unshift(subDef);
+			}
+		}
+	},
 
-        return _.bind(function() { this.unsubscribe(subDef); }, this);
-    },
+	notifyTaps: function(data, envelope) {
+		_.each(this.wireTaps,function(tap) {
+			tap(data, envelope);
+		});
+	},
 
-    unsubscribe: function(config) {
-        if(this.subscriptions[config.exchange][config.topic]) {
-            var len = this.subscriptions[config.exchange][config.topic].length,
-                idx = 0;
-            for ( ; idx < len; idx++ ) {
-                if (this.subscriptions[config.exchange][config.topic][idx] === config) {
-                    this.subscriptions[config.exchange][config.topic].splice( idx, 1 );
-                    break;
-                }
-            }
-        }
-    },
+	unsubscribe: function(config) {
+		if(this.subscriptions[config.exchange][config.topic]) {
+			var len = this.subscriptions[config.exchange][config.topic].length,
+				idx = 0;
+			for ( ; idx < len; idx++ ) {
+				if (this.subscriptions[config.exchange][config.topic][idx] === config) {
+					this.subscriptions[config.exchange][config.topic].splice( idx, 1 );
+					break;
+				}
+			}
+		}
+	},
 
-    addWireTap: function(callback) {
-        this.wireTaps.push(callback);
-        return function() {
-            var idx = this.wireTaps.indexOf(callback);
-            if(idx !== -1) {
-                this.wireTaps.splice(idx,1);
-            }
-        };
-    }
+	addWireTap: function(callback) {
+		var self = this;
+		self.wireTaps.push(callback);
+		return function() {
+			var idx = self.wireTaps.indexOf(callback);
+			if(idx !== -1) {
+				self.wireTaps.splice(idx,1);
+			}
+		};
+	}
 };
 
 var postal = {
-    configuration: {
-        bus: localBus,
-        resolver: bindingsResolver
-    },
+	configuration: {
+		bus: localBus,
+		resolver: bindingsResolver
+	},
 
-    channel: function(exchange, topic) {
-        var exch = arguments.length === 2 ? exchange : DEFAULT_EXCHANGE,
-            tpc  = arguments.length === 2 ? topic : exchange;
-        return new ChannelDefinition(exch, tpc);
-    },
+	channel: function(exchange, topic) {
+		var exch = arguments.length === 2 ? exchange : DEFAULT_EXCHANGE,
+			tpc  = arguments.length === 2 ? topic : exchange;
+		return new ChannelDefinition(exch, tpc);
+	},
 
-    subscribe: function(exchange, topic, callback) {
-        var exch = arguments.length === 3 ? exchange : DEFAULT_EXCHANGE,
-            tpc  = arguments.length === 3 ? topic : exchange,
-            callbk  = arguments.length === 3 ? callback : topic;
-        var channel = this.channel(exch, tpc);
-        return channel.subscribe(callbk);
-    },
+	subscribe: function(exchange, topic, callback) {
+		var exch = arguments.length === 3 ? exchange : DEFAULT_EXCHANGE,
+			tpc  = arguments.length === 3 ? topic : exchange,
+			callbk  = arguments.length === 3 ? callback : topic;
+		var channel = this.channel(exch, tpc);
+		return channel.subscribe(callbk);
+	},
 
-    publish: function(exchange, topic, payload, envelopeOptions) {
-        var parsedArgs = parsePublishArgs([].slice.call(arguments,0));
-        var channel = this.channel(parsedArgs.envelope.exchange, parsedArgs.envelope.topic);
-        channel.publish(parsedArgs.payload, parsedArgs.envelope);
-    },
+	publish: function(exchange, topic, payload, envelopeOptions) {
+		var parsedArgs = parsePublishArgs([].slice.call(arguments,0));
+		var channel = this.channel(parsedArgs.envelope.exchange, parsedArgs.envelope.topic);
+		channel.publish(parsedArgs.payload, parsedArgs.envelope);
+	},
 
-    addWireTap: function(callback) {
-        this.configuration.bus.addWireTap(callback);
-    }
+	addWireTap: function(callback) {
+		return this.configuration.bus.addWireTap(callback);
+	},
+
+	bindExchanges: function(sources, destinations) {
+		var subscriptions = [];
+		if(!_.isArray(sources)) {
+			sources = [sources];
+		}
+		if(!_.isArray(destinations)) {
+			destinations = [destinations];
+		}
+		_.each(sources, function(source){
+			var sourceTopic = source.topic || "*";
+			_.each(destinations, function(destination) {
+				var destExchange = destination.exchange || DEFAULT_EXCHANGE;
+				subscriptions.push(
+					postal.subscribe(source.exchange || DEFAULT_EXCHANGE, source.topic || "*", function(msg, env) {
+						var destTopic = _.isFunction(destination.topic) ? destination.topic(env.topic) : destination.topic || env.topic;
+						postal.publish(destExchange, destTopic, msg);
+					})
+				);
+			});
+		});
+		return subscriptions;
+	}
 };
 
 global.postal = postal; })(window);
\ No newline at end of file
diff --git a/lib/browser/amd/postal.diagnostics.min.gz.js b/lib/browser/amd/postal.diagnostics.min.gz.js
index 3a59cdd..4da730f 100644
Binary files a/lib/browser/amd/postal.diagnostics.min.gz.js and b/lib/browser/amd/postal.diagnostics.min.gz.js differ
diff --git a/lib/browser/amd/postal.js b/lib/browser/amd/postal.js
index 62f4dad..25511c7 100644
--- a/lib/browser/amd/postal.js
+++ b/lib/browser/amd/postal.js
@@ -9,6 +9,7 @@ define(['underscore'], function(_) {
 var DEFAULT_EXCHANGE = "/",
     DEFAULT_PRIORITY = 50,
     DEFAULT_DISPOSEAFTER = 0,
+    SYSTEM_EXCHANGE = "postal",
     NO_OP = function() { },
     parsePublishArgs = function(args) {
         var parsed = { envelope: { } }, env;
@@ -90,11 +91,24 @@ var SubscriptionDefinition = function(exchange, topic, callback) {
     this.maxCalls = DEFAULT_DISPOSEAFTER;
     this.onHandled = NO_OP;
     this.context = null;
+
+    postal.publish(SYSTEM_EXCHANGE, "subscription.created",
+        {
+            event: "subscription.created",
+            exchange: exchange,
+            topic: topic
+        });
 };
 
 SubscriptionDefinition.prototype = {
     unsubscribe: function() {
         postal.configuration.bus.unsubscribe(this);
+        postal.publish(SYSTEM_EXCHANGE, "subscription.removed",
+            {
+                event: "subscription.removed",
+                exchange: this.exchange,
+                topic: this.topic
+            });
     },
 
     defer: function() {
@@ -221,109 +235,131 @@ var bindingsResolver = {
 
 var localBus = {
 
-    subscriptions: {},
+	subscriptions: {},
 
-    wireTaps: [],
+	wireTaps: [],
 
-    publish: function(data, envelope) {
-        _.each(this.wireTaps,function(tap) {
-            tap(data, envelope);
-        });
+	publish: function(data, envelope) {
+		this.notifyTaps(data, envelope);
 
-        _.each(this.subscriptions[envelope.exchange], function(topic) {
-            _.each(topic, function(binding){
-                if(postal.configuration.resolver.compare(binding.topic, envelope.topic)) {
-                    if(_.all(binding.constraints, function(constraint) { return constraint(data); })) {
-                        if(typeof binding.callback === 'function') {
-                            binding.callback.apply(binding.context, [data, envelope]);
-                            binding.onHandled();
-                        }
-                    }
-                }
-            });
-        });
-    },
+		_.each(this.subscriptions[envelope.exchange], function(topic) {
+			_.each(topic, function(binding){
+				if(postal.configuration.resolver.compare(binding.topic, envelope.topic)) {
+					if(_.all(binding.constraints, function(constraint) { return constraint(data); })) {
+						if(typeof binding.callback === 'function') {
+							binding.callback.apply(binding.context, [data, envelope]);
+							binding.onHandled();
+						}
+					}
+				}
+			});
+		});
+	},
 
-    subscribe: function(subDef) {
-        var idx, found, fn;
+	subscribe: function(subDef) {
+		var idx, found, fn, exch, subs;
 
-        if(!this.subscriptions[subDef.exchange]) {
-            this.subscriptions[subDef.exchange] = {};
-        }
-        if(!this.subscriptions[subDef.exchange][subDef.topic]) {
-            this.subscriptions[subDef.exchange][subDef.topic] = [];
-        }
+		exch = this.subscriptions[subDef.exchange] = this.subscriptions[subDef.exchange] || {};
+		subs = this.subscriptions[subDef.exchange][subDef.topic] = this.subscriptions[subDef.exchange][subDef.topic] || [];
 
-        idx = this.subscriptions[subDef.exchange][subDef.topic].length - 1;
-        if(!_.any(this.subscriptions[subDef.exchange][subDef.topic], function(cfg) { return cfg === subDef; })) {
-            for(; idx >= 0; idx--) {
-                if(this.subscriptions[subDef.exchange][subDef.topic][idx].priority <= subDef.priority) {
-                    this.subscriptions[subDef.exchange][subDef.topic].splice(idx + 1, 0, subDef);
-                    found = true;
-                    break;
-                }
-            }
-            if(!found) {
-                this.subscriptions[subDef.exchange][subDef.topic].unshift(subDef);
-            }
-        }
+		idx = subs.length - 1;
+		if(!_.any(subs, function(cfg) { return cfg === subDef; })) {
+			for(; idx >= 0; idx--) {
+				if(subs[idx].priority <= subDef.priority) {
+					subs.splice(idx + 1, 0, subDef);
+					found = true;
+					break;
+				}
+			}
+			if(!found) {
+				subs.unshift(subDef);
+			}
+		}
+	},
 
-        return _.bind(function() { this.unsubscribe(subDef); }, this);
-    },
+	notifyTaps: function(data, envelope) {
+		_.each(this.wireTaps,function(tap) {
+			tap(data, envelope);
+		});
+	},
 
-    unsubscribe: function(config) {
-        if(this.subscriptions[config.exchange][config.topic]) {
-            var len = this.subscriptions[config.exchange][config.topic].length,
-                idx = 0;
-            for ( ; idx < len; idx++ ) {
-                if (this.subscriptions[config.exchange][config.topic][idx] === config) {
-                    this.subscriptions[config.exchange][config.topic].splice( idx, 1 );
-                    break;
-                }
-            }
-        }
-    },
+	unsubscribe: function(config) {
+		if(this.subscriptions[config.exchange][config.topic]) {
+			var len = this.subscriptions[config.exchange][config.topic].length,
+				idx = 0;
+			for ( ; idx < len; idx++ ) {
+				if (this.subscriptions[config.exchange][config.topic][idx] === config) {
+					this.subscriptions[config.exchange][config.topic].splice( idx, 1 );
+					break;
+				}
+			}
+		}
+	},
 
-    addWireTap: function(callback) {
-        this.wireTaps.push(callback);
-        return function() {
-            var idx = this.wireTaps.indexOf(callback);
-            if(idx !== -1) {
-                this.wireTaps.splice(idx,1);
-            }
-        };
-    }
+	addWireTap: function(callback) {
+		var self = this;
+		self.wireTaps.push(callback);
+		return function() {
+			var idx = self.wireTaps.indexOf(callback);
+			if(idx !== -1) {
+				self.wireTaps.splice(idx,1);
+			}
+		};
+	}
 };
 
 var postal = {
-    configuration: {
-        bus: localBus,
-        resolver: bindingsResolver
-    },
+	configuration: {
+		bus: localBus,
+		resolver: bindingsResolver
+	},
 
-    channel: function(exchange, topic) {
-        var exch = arguments.length === 2 ? exchange : DEFAULT_EXCHANGE,
-            tpc  = arguments.length === 2 ? topic : exchange;
-        return new ChannelDefinition(exch, tpc);
-    },
+	channel: function(exchange, topic) {
+		var exch = arguments.length === 2 ? exchange : DEFAULT_EXCHANGE,
+			tpc  = arguments.length === 2 ? topic : exchange;
+		return new ChannelDefinition(exch, tpc);
+	},
 
-    subscribe: function(exchange, topic, callback) {
-        var exch = arguments.length === 3 ? exchange : DEFAULT_EXCHANGE,
-            tpc  = arguments.length === 3 ? topic : exchange,
-            callbk  = arguments.length === 3 ? callback : topic;
-        var channel = this.channel(exch, tpc);
-        return channel.subscribe(callbk);
-    },
+	subscribe: function(exchange, topic, callback) {
+		var exch = arguments.length === 3 ? exchange : DEFAULT_EXCHANGE,
+			tpc  = arguments.length === 3 ? topic : exchange,
+			callbk  = arguments.length === 3 ? callback : topic;
+		var channel = this.channel(exch, tpc);
+		return channel.subscribe(callbk);
+	},
 
-    publish: function(exchange, topic, payload, envelopeOptions) {
-        var parsedArgs = parsePublishArgs([].slice.call(arguments,0));
-        var channel = this.channel(parsedArgs.envelope.exchange, parsedArgs.envelope.topic);
-        channel.publish(parsedArgs.payload, parsedArgs.envelope);
-    },
+	publish: function(exchange, topic, payload, envelopeOptions) {
+		var parsedArgs = parsePublishArgs([].slice.call(arguments,0));
+		var channel = this.channel(parsedArgs.envelope.exchange, parsedArgs.envelope.topic);
+		channel.publish(parsedArgs.payload, parsedArgs.envelope);
+	},
 
-    addWireTap: function(callback) {
-        this.configuration.bus.addWireTap(callback);
-    }
+	addWireTap: function(callback) {
+		return this.configuration.bus.addWireTap(callback);
+	},
+
+	bindExchanges: function(sources, destinations) {
+		var subscriptions = [];
+		if(!_.isArray(sources)) {
+			sources = [sources];
+		}
+		if(!_.isArray(destinations)) {
+			destinations = [destinations];
+		}
+		_.each(sources, function(source){
+			var sourceTopic = source.topic || "*";
+			_.each(destinations, function(destination) {
+				var destExchange = destination.exchange || DEFAULT_EXCHANGE;
+				subscriptions.push(
+					postal.subscribe(source.exchange || DEFAULT_EXCHANGE, source.topic || "*", function(msg, env) {
+						var destTopic = _.isFunction(destination.topic) ? destination.topic(env.topic) : destination.topic || env.topic;
+						postal.publish(destExchange, destTopic, msg);
+					})
+				);
+			});
+		});
+		return subscriptions;
+	}
 };
 
 return postal; });
\ No newline at end of file
diff --git a/lib/browser/amd/postal.min.gz.js b/lib/browser/amd/postal.min.gz.js
index 3d4deb9..f69704d 100644
Binary files a/lib/browser/amd/postal.min.gz.js and b/lib/browser/amd/postal.min.gz.js differ
diff --git a/lib/browser/amd/postal.min.js b/lib/browser/amd/postal.min.js
index 3419f72..3795591 100644
--- a/lib/browser/amd/postal.min.js
+++ b/lib/browser/amd/postal.min.js
@@ -1 +1 @@
-define(["underscore"],function(a){var b="/",c=50,d=0,e=function(){},f=function(c){var d={envelope:{}},e;switch(c.length){case 3:typeof c[1]=="Object"&&typeof c[2]=="Object"?(d.envelope.exchange=b,d.envelope.topic=c[0],d.payload=c[1],e=d.envelope,d.envelope=a.extend(e,c[2])):(d.envelope.exchange=c[0],d.envelope.topic=c[1],d.payload=c[2]);break;case 4:d.envelope.exchange=c[0],d.envelope.topic=c[1],d.payload=c[2],e=d.envelope,d.envelope=a.extend(e,c[3]);break;default:d.envelope.exchange=b,d.envelope.topic=c[0],d.payload=c[1]}return d},g=function(){var b;return function(c){var d=!1;return a.isString(c)?(d=c===b,b=c):(d=a.isEqual(c,b),b=a.clone(c)),!d}},h=function(a,b){this.exchange=a,this.topic=b};h.prototype={subscribe:function(a){var b=new i(this.exchange,this.topic,a);return l.configuration.bus.subscribe(b),b},publish:function(b,c){var d=a.extend({exchange:this.exchange,timeStamp:new Date,topic:this.topic},c);l.configuration.bus.publish(b,d)}};var i=function(a,b,f){this.exchange=a,this.topic=b,this.callback=f,this.priority=c,this.constraints=[],this.maxCalls=d,this.onHandled=e,this.context=null};i.prototype={unsubscribe:function(){l.configuration.bus.unsubscribe(this)},defer:function(){var a=this.callback;return this.callback=function(b){setTimeout(a,0,b)},this},disposeAfter:function(b){if(a.isNaN(b)||b<=0)throw"The value provided to disposeAfter (maxCalls) must be a number greater than zero.";var c=this.onHandled,d=a.after(b,a.bind(function(){this.unsubscribe(this)},this));return this.onHandled=function(){c.apply(this.context,arguments),d()},this},ignoreDuplicates:function(){return this.withConstraint(new g),this},whenHandledThenExecute:function(b){if(!a.isFunction(b))throw"Value provided to 'whenHandledThenExecute' must be a function";return this.onHandled=b,this},withConstraint:function(b){if(!a.isFunction(b))throw"Predicate constraint must be a function";return this.constraints.push(b),this},withConstraints:function(b){var c=this;return a.isArray(b)&&a.each(b,function(a){c.withConstraint(a)}),c},withContext:function(a){return this.context=a,this},withDebounce:function(b){if(a.isNaN(b))throw"Milliseconds must be a number";var c=this.callback;return this.callback=a.debounce(c,b),this},withDelay:function(b){if(a.isNaN(b))throw"Milliseconds must be a number";var c=this.callback;return this.callback=function(a){setTimeout(c,b,a)},this},withPriority:function(b){if(a.isNaN(b))throw"Priority must be a number";return this.priority=b,this},withThrottle:function(b){if(a.isNaN(b))throw"Milliseconds must be a number";var c=this.callback;return this.callback=a.throttle(c,b),this}};var j={cache:{},compare:function(a,b){if(this.cache[b]&&this.cache[b][a])return!0;var c=new RegExp("^"+this.regexify(a)+"$"),d=c.test(b);return d&&(this.cache[b]||(this.cache[b]={}),this.cache[b][a]=!0),d},regexify:function(a){return a.replace(/\./g,"\\.").replace(/\*/g,".*").replace(/#/g,"[A-Z,a-z,0-9]*")}},k={subscriptions:{},wireTaps:[],publish:function(b,c){a.each(this.wireTaps,function(a){a(b,c)}),a.each(this.subscriptions[c.exchange],function(d){a.each(d,function(d){l.configuration.resolver.compare(d.topic,c.topic)&&a.all(d.constraints,function(a){return a(b)})&&typeof d.callback=="function"&&(d.callback.apply(d.context,[b,c]),d.onHandled())})})},subscribe:function(b){var c,d,e;this.subscriptions[b.exchange]||(this.subscriptions[b.exchange]={}),this.subscriptions[b.exchange][b.topic]||(this.subscriptions[b.exchange][b.topic]=[]),c=this.subscriptions[b.exchange][b.topic].length-1;if(!a.any(this.subscriptions[b.exchange][b.topic],function(a){return a===b})){for(;c>=0;c--)if(this.subscriptions[b.exchange][b.topic][c].priority<=b.priority){this.subscriptions[b.exchange][b.topic].splice(c+1,0,b),d=!0;break}d||this.subscriptions[b.exchange][b.topic].unshift(b)}return a.bind(function(){this.unsubscribe(b)},this)},unsubscribe:function(a){if(this.subscriptions[a.exchange][a.topic]){var b=this.subscriptions[a.exchange][a.topic].length,c=0;for(;c<b;c++)if(this.subscriptions[a.exchange][a.topic][c]===a){this.subscriptions[a.exchange][a.topic].splice(c,1);break}}},addWireTap:function(a){return this.wireTaps.push(a),function(){var b=this.wireTaps.indexOf(a);b!==-1&&this.wireTaps.splice(b,1)}}},l={configuration:{bus:k,resolver:j},channel:function(a,c){var d=arguments.length===2?a:b,e=arguments.length===2?c:a;return new h(d,e)},subscribe:function(a,c,d){var e=arguments.length===3?a:b,f=arguments.length===3?c:a,g=arguments.length===3?d:c,h=this.channel(e,f);return h.subscribe(g)},publish:function(a,b,c,d){var e=f([].slice.call(arguments,0)),g=this.channel(e.envelope.exchange,e.envelope.topic);g.publish(e.payload,e.envelope)},addWireTap:function(a){this.configuration.bus.addWireTap(a)}};return l})
\ No newline at end of file
+define(["underscore"],function(a){var b="/",c=50,d=0,e="postal",f=function(){},g=function(c){var d={envelope:{}},e;switch(c.length){case 3:typeof c[1]=="Object"&&typeof c[2]=="Object"?(d.envelope.exchange=b,d.envelope.topic=c[0],d.payload=c[1],e=d.envelope,d.envelope=a.extend(e,c[2])):(d.envelope.exchange=c[0],d.envelope.topic=c[1],d.payload=c[2]);break;case 4:d.envelope.exchange=c[0],d.envelope.topic=c[1],d.payload=c[2],e=d.envelope,d.envelope=a.extend(e,c[3]);break;default:d.envelope.exchange=b,d.envelope.topic=c[0],d.payload=c[1]}return d},h=function(){var b;return function(c){var d=!1;return a.isString(c)?(d=c===b,b=c):(d=a.isEqual(c,b),b=a.clone(c)),!d}},i=function(a,b){this.exchange=a,this.topic=b};i.prototype={subscribe:function(a){var b=new j(this.exchange,this.topic,a);return m.configuration.bus.subscribe(b),b},publish:function(b,c){var d=a.extend({exchange:this.exchange,timeStamp:new Date,topic:this.topic},c);m.configuration.bus.publish(b,d)}};var j=function(a,b,g){this.exchange=a,this.topic=b,this.callback=g,this.priority=c,this.constraints=[],this.maxCalls=d,this.onHandled=f,this.context=null,m.publish(e,"subscription.created",{event:"subscription.created",exchange:a,topic:b})};j.prototype={unsubscribe:function(){m.configuration.bus.unsubscribe(this),m.publish(e,"subscription.removed",{event:"subscription.removed",exchange:this.exchange,topic:this.topic})},defer:function(){var a=this.callback;return this.callback=function(b){setTimeout(a,0,b)},this},disposeAfter:function(b){if(a.isNaN(b)||b<=0)throw"The value provided to disposeAfter (maxCalls) must be a number greater than zero.";var c=this.onHandled,d=a.after(b,a.bind(function(){this.unsubscribe(this)},this));return this.onHandled=function(){c.apply(this.context,arguments),d()},this},ignoreDuplicates:function(){return this.withConstraint(new h),this},whenHandledThenExecute:function(b){if(!a.isFunction(b))throw"Value provided to 'whenHandledThenExecute' must be a function";return this.onHandled=b,this},withConstraint:function(b){if(!a.isFunction(b))throw"Predicate constraint must be a function";return this.constraints.push(b),this},withConstraints:function(b){var c=this;return a.isArray(b)&&a.each(b,function(a){c.withConstraint(a)}),c},withContext:function(a){return this.context=a,this},withDebounce:function(b){if(a.isNaN(b))throw"Milliseconds must be a number";var c=this.callback;return this.callback=a.debounce(c,b),this},withDelay:function(b){if(a.isNaN(b))throw"Milliseconds must be a number";var c=this.callback;return this.callback=function(a){setTimeout(c,b,a)},this},withPriority:function(b){if(a.isNaN(b))throw"Priority must be a number";return this.priority=b,this},withThrottle:function(b){if(a.isNaN(b))throw"Milliseconds must be a number";var c=this.callback;return this.callback=a.throttle(c,b),this}};var k={cache:{},compare:function(a,b){if(this.cache[b]&&this.cache[b][a])return!0;var c=new RegExp("^"+this.regexify(a)+"$"),d=c.test(b);return d&&(this.cache[b]||(this.cache[b]={}),this.cache[b][a]=!0),d},regexify:function(a){return a.replace(/\./g,"\\.").replace(/\*/g,".*").replace(/#/g,"[A-Z,a-z,0-9]*")}},l={subscriptions:{},wireTaps:[],publish:function(b,c){this.notifyTaps(b,c),a.each(this.subscriptions[c.exchange],function(d){a.each(d,function(d){m.configuration.resolver.compare(d.topic,c.topic)&&a.all(d.constraints,function(a){return a(b)})&&typeof d.callback=="function"&&(d.callback.apply(d.context,[b,c]),d.onHandled())})})},subscribe:function(b){var c,d,e,f,g;f=this.subscriptions[b.exchange]=this.subscriptions[b.exchange]||{},g=this.subscriptions[b.exchange][b.topic]=this.subscriptions[b.exchange][b.topic]||[],c=g.length-1;if(!a.any(g,function(a){return a===b})){for(;c>=0;c--)if(g[c].priority<=b.priority){g.splice(c+1,0,b),d=!0;break}d||g.unshift(b)}},notifyTaps:function(b,c){a.each(this.wireTaps,function(a){a(b,c)})},unsubscribe:function(a){if(this.subscriptions[a.exchange][a.topic]){var b=this.subscriptions[a.exchange][a.topic].length,c=0;for(;c<b;c++)if(this.subscriptions[a.exchange][a.topic][c]===a){this.subscriptions[a.exchange][a.topic].splice(c,1);break}}},addWireTap:function(a){var b=this;return b.wireTaps.push(a),function(){var c=b.wireTaps.indexOf(a);c!==-1&&b.wireTaps.splice(c,1)}}},m={configuration:{bus:l,resolver:k},channel:function(a,c){var d=arguments.length===2?a:b,e=arguments.length===2?c:a;return new i(d,e)},subscribe:function(a,c,d){var e=arguments.length===3?a:b,f=arguments.length===3?c:a,g=arguments.length===3?d:c,h=this.channel(e,f);return h.subscribe(g)},publish:function(a,b,c,d){var e=g([].slice.call(arguments,0)),f=this.channel(e.envelope.exchange,e.envelope.topic);f.publish(e.payload,e.envelope)},addWireTap:function(a){return this.configuration.bus.addWireTap(a)},bindExchanges:function(c,d){var e=[];return a.isArray(c)||(c=[c]),a.isArray(d)||(d=[d]),a.each(c,function(c){var f=c.topic||"*";a.each(d,function(d){var f=d.exchange||b;e.push(m.subscribe(c.exchange||b,c.topic||"*",function(b,c){var e=a.isFunction(d.topic)?d.topic(c.topic):d.topic||c.topic;m.publish(f,e,b)}))})}),e}};return m})
\ No newline at end of file
diff --git a/lib/browser/standard/postal.diagnostics.min.gz.js b/lib/browser/standard/postal.diagnostics.min.gz.js
index f72c250..1210fae 100644
Binary files a/lib/browser/standard/postal.diagnostics.min.gz.js and b/lib/browser/standard/postal.diagnostics.min.gz.js differ
diff --git a/lib/browser/standard/postal.js b/lib/browser/standard/postal.js
index 9894230..2c04166 100644
--- a/lib/browser/standard/postal.js
+++ b/lib/browser/standard/postal.js
@@ -9,6 +9,7 @@
 var DEFAULT_EXCHANGE = "/",
     DEFAULT_PRIORITY = 50,
     DEFAULT_DISPOSEAFTER = 0,
+    SYSTEM_EXCHANGE = "postal",
     NO_OP = function() { },
     parsePublishArgs = function(args) {
         var parsed = { envelope: { } }, env;
@@ -90,11 +91,24 @@ var SubscriptionDefinition = function(exchange, topic, callback) {
     this.maxCalls = DEFAULT_DISPOSEAFTER;
     this.onHandled = NO_OP;
     this.context = null;
+
+    postal.publish(SYSTEM_EXCHANGE, "subscription.created",
+        {
+            event: "subscription.created",
+            exchange: exchange,
+            topic: topic
+        });
 };
 
 SubscriptionDefinition.prototype = {
     unsubscribe: function() {
         postal.configuration.bus.unsubscribe(this);
+        postal.publish(SYSTEM_EXCHANGE, "subscription.removed",
+            {
+                event: "subscription.removed",
+                exchange: this.exchange,
+                topic: this.topic
+            });
     },
 
     defer: function() {
@@ -221,109 +235,131 @@ var bindingsResolver = {
 
 var localBus = {
 
-    subscriptions: {},
+	subscriptions: {},
 
-    wireTaps: [],
+	wireTaps: [],
 
-    publish: function(data, envelope) {
-        _.each(this.wireTaps,function(tap) {
-            tap(data, envelope);
-        });
+	publish: function(data, envelope) {
+		this.notifyTaps(data, envelope);
 
-        _.each(this.subscriptions[envelope.exchange], function(topic) {
-            _.each(topic, function(binding){
-                if(postal.configuration.resolver.compare(binding.topic, envelope.topic)) {
-                    if(_.all(binding.constraints, function(constraint) { return constraint(data); })) {
-                        if(typeof binding.callback === 'function') {
-                            binding.callback.apply(binding.context, [data, envelope]);
-                            binding.onHandled();
-                        }
-                    }
-                }
-            });
-        });
-    },
+		_.each(this.subscriptions[envelope.exchange], function(topic) {
+			_.each(topic, function(binding){
+				if(postal.configuration.resolver.compare(binding.topic, envelope.topic)) {
+					if(_.all(binding.constraints, function(constraint) { return constraint(data); })) {
+						if(typeof binding.callback === 'function') {
+							binding.callback.apply(binding.context, [data, envelope]);
+							binding.onHandled();
+						}
+					}
+				}
+			});
+		});
+	},
 
-    subscribe: function(subDef) {
-        var idx, found, fn;
+	subscribe: function(subDef) {
+		var idx, found, fn, exch, subs;
 
-        if(!this.subscriptions[subDef.exchange]) {
-            this.subscriptions[subDef.exchange] = {};
-        }
-        if(!this.subscriptions[subDef.exchange][subDef.topic]) {
-            this.subscriptions[subDef.exchange][subDef.topic] = [];
-        }
+		exch = this.subscriptions[subDef.exchange] = this.subscriptions[subDef.exchange] || {};
+		subs = this.subscriptions[subDef.exchange][subDef.topic] = this.subscriptions[subDef.exchange][subDef.topic] || [];
 
-        idx = this.subscriptions[subDef.exchange][subDef.topic].length - 1;
-        if(!_.any(this.subscriptions[subDef.exchange][subDef.topic], function(cfg) { return cfg === subDef; })) {
-            for(; idx >= 0; idx--) {
-                if(this.subscriptions[subDef.exchange][subDef.topic][idx].priority <= subDef.priority) {
-                    this.subscriptions[subDef.exchange][subDef.topic].splice(idx + 1, 0, subDef);
-                    found = true;
-                    break;
-                }
-            }
-            if(!found) {
-                this.subscriptions[subDef.exchange][subDef.topic].unshift(subDef);
-            }
-        }
+		idx = subs.length - 1;
+		if(!_.any(subs, function(cfg) { return cfg === subDef; })) {
+			for(; idx >= 0; idx--) {
+				if(subs[idx].priority <= subDef.priority) {
+					subs.splice(idx + 1, 0, subDef);
+					found = true;
+					break;
+				}
+			}
+			if(!found) {
+				subs.unshift(subDef);
+			}
+		}
+	},
 
-        return _.bind(function() { this.unsubscribe(subDef); }, this);
-    },
+	notifyTaps: function(data, envelope) {
+		_.each(this.wireTaps,function(tap) {
+			tap(data, envelope);
+		});
+	},
 
-    unsubscribe: function(config) {
-        if(this.subscriptions[config.exchange][config.topic]) {
-            var len = this.subscriptions[config.exchange][config.topic].length,
-                idx = 0;
-            for ( ; idx < len; idx++ ) {
-                if (this.subscriptions[config.exchange][config.topic][idx] === config) {
-                    this.subscriptions[config.exchange][config.topic].splice( idx, 1 );
-                    break;
-                }
-            }
-        }
-    },
+	unsubscribe: function(config) {
+		if(this.subscriptions[config.exchange][config.topic]) {
+			var len = this.subscriptions[config.exchange][config.topic].length,
+				idx = 0;
+			for ( ; idx < len; idx++ ) {
+				if (this.subscriptions[config.exchange][config.topic][idx] === config) {
+					this.subscriptions[config.exchange][config.topic].splice( idx, 1 );
+					break;
+				}
+			}
+		}
+	},
 
-    addWireTap: function(callback) {
-        this.wireTaps.push(callback);
-        return function() {
-            var idx = this.wireTaps.indexOf(callback);
-            if(idx !== -1) {
-                this.wireTaps.splice(idx,1);
-            }
-        };
-    }
+	addWireTap: function(callback) {
+		var self = this;
+		self.wireTaps.push(callback);
+		return function() {
+			var idx = self.wireTaps.indexOf(callback);
+			if(idx !== -1) {
+				self.wireTaps.splice(idx,1);
+			}
+		};
+	}
 };
 
 var postal = {
-    configuration: {
-        bus: localBus,
-        resolver: bindingsResolver
-    },
+	configuration: {
+		bus: localBus,
+		resolver: bindingsResolver
+	},
 
-    channel: function(exchange, topic) {
-        var exch = arguments.length === 2 ? exchange : DEFAULT_EXCHANGE,
-            tpc  = arguments.length === 2 ? topic : exchange;
-        return new ChannelDefinition(exch, tpc);
-    },
+	channel: function(exchange, topic) {
+		var exch = arguments.length === 2 ? exchange : DEFAULT_EXCHANGE,
+			tpc  = arguments.length === 2 ? topic : exchange;
+		return new ChannelDefinition(exch, tpc);
+	},
 
-    subscribe: function(exchange, topic, callback) {
-        var exch = arguments.length === 3 ? exchange : DEFAULT_EXCHANGE,
-            tpc  = arguments.length === 3 ? topic : exchange,
-            callbk  = arguments.length === 3 ? callback : topic;
-        var channel = this.channel(exch, tpc);
-        return channel.subscribe(callbk);
-    },
+	subscribe: function(exchange, topic, callback) {
+		var exch = arguments.length === 3 ? exchange : DEFAULT_EXCHANGE,
+			tpc  = arguments.length === 3 ? topic : exchange,
+			callbk  = arguments.length === 3 ? callback : topic;
+		var channel = this.channel(exch, tpc);
+		return channel.subscribe(callbk);
+	},
 
-    publish: function(exchange, topic, payload, envelopeOptions) {
-        var parsedArgs = parsePublishArgs([].slice.call(arguments,0));
-        var channel = this.channel(parsedArgs.envelope.exchange, parsedArgs.envelope.topic);
-        channel.publish(parsedArgs.payload, parsedArgs.envelope);
-    },
+	publish: function(exchange, topic, payload, envelopeOptions) {
+		var parsedArgs = parsePublishArgs([].slice.call(arguments,0));
+		var channel = this.channel(parsedArgs.envelope.exchange, parsedArgs.envelope.topic);
+		channel.publish(parsedArgs.payload, parsedArgs.envelope);
+	},
 
-    addWireTap: function(callback) {
-        this.configuration.bus.addWireTap(callback);
-    }
+	addWireTap: function(callback) {
+		return this.configuration.bus.addWireTap(callback);
+	},
+
+	bindExchanges: function(sources, destinations) {
+		var subscriptions = [];
+		if(!_.isArray(sources)) {
+			sources = [sources];
+		}
+		if(!_.isArray(destinations)) {
+			destinations = [destinations];
+		}
+		_.each(sources, function(source){
+			var sourceTopic = source.topic || "*";
+			_.each(destinations, function(destination) {
+				var destExchange = destination.exchange || DEFAULT_EXCHANGE;
+				subscriptions.push(
+					postal.subscribe(source.exchange || DEFAULT_EXCHANGE, source.topic || "*", function(msg, env) {
+						var destTopic = _.isFunction(destination.topic) ? destination.topic(env.topic) : destination.topic || env.topic;
+						postal.publish(destExchange, destTopic, msg);
+					})
+				);
+			});
+		});
+		return subscriptions;
+	}
 };
 
 global.postal = postal; })(window);
\ No newline at end of file
diff --git a/lib/browser/standard/postal.min.gz.js b/lib/browser/standard/postal.min.gz.js
index 799945f..0983cb9 100644
Binary files a/lib/browser/standard/postal.min.gz.js and b/lib/browser/standard/postal.min.gz.js differ
diff --git a/lib/browser/standard/postal.min.js b/lib/browser/standard/postal.min.js
index 9a736d7..8100fd0 100644
--- a/lib/browser/standard/postal.min.js
+++ b/lib/browser/standard/postal.min.js
@@ -1 +1 @@
-(function(a,b){var c="/",d=50,e=0,f=function(){},g=function(a){var b={envelope:{}},d;switch(a.length){case 3:typeof a[1]=="Object"&&typeof a[2]=="Object"?(b.envelope.exchange=c,b.envelope.topic=a[0],b.payload=a[1],d=b.envelope,b.envelope=_.extend(d,a[2])):(b.envelope.exchange=a[0],b.envelope.topic=a[1],b.payload=a[2]);break;case 4:b.envelope.exchange=a[0],b.envelope.topic=a[1],b.payload=a[2],d=b.envelope,b.envelope=_.extend(d,a[3]);break;default:b.envelope.exchange=c,b.envelope.topic=a[0],b.payload=a[1]}return b},h=function(){var a;return function(b){var c=!1;return _.isString(b)?(c=b===a,a=b):(c=_.isEqual(b,a),a=_.clone(b)),!c}},i=function(a,b){this.exchange=a,this.topic=b};i.prototype={subscribe:function(a){var b=new j(this.exchange,this.topic,a);return m.configuration.bus.subscribe(b),b},publish:function(a,b){var c=_.extend({exchange:this.exchange,timeStamp:new Date,topic:this.topic},b);m.configuration.bus.publish(a,c)}};var j=function(a,b,c){this.exchange=a,this.topic=b,this.callback=c,this.priority=d,this.constraints=[],this.maxCalls=e,this.onHandled=f,this.context=null};j.prototype={unsubscribe:function(){m.configuration.bus.unsubscribe(this)},defer:function(){var a=this.callback;return this.callback=function(b){setTimeout(a,0,b)},this},disposeAfter:function(a){if(_.isNaN(a)||a<=0)throw"The value provided to disposeAfter (maxCalls) must be a number greater than zero.";var b=this.onHandled,c=_.after(a,_.bind(function(){this.unsubscribe(this)},this));return this.onHandled=function(){b.apply(this.context,arguments),c()},this},ignoreDuplicates:function(){return this.withConstraint(new h),this},whenHandledThenExecute:function(a){if(!_.isFunction(a))throw"Value provided to 'whenHandledThenExecute' must be a function";return this.onHandled=a,this},withConstraint:function(a){if(!_.isFunction(a))throw"Predicate constraint must be a function";return this.constraints.push(a),this},withConstraints:function(a){var b=this;return _.isArray(a)&&_.each(a,function(a){b.withConstraint(a)}),b},withContext:function(a){return this.context=a,this},withDebounce:function(a){if(_.isNaN(a))throw"Milliseconds must be a number";var b=this.callback;return this.callback=_.debounce(b,a),this},withDelay:function(a){if(_.isNaN(a))throw"Milliseconds must be a number";var b=this.callback;return this.callback=function(c){setTimeout(b,a,c)},this},withPriority:function(a){if(_.isNaN(a))throw"Priority must be a number";return this.priority=a,this},withThrottle:function(a){if(_.isNaN(a))throw"Milliseconds must be a number";var b=this.callback;return this.callback=_.throttle(b,a),this}};var k={cache:{},compare:function(a,b){if(this.cache[b]&&this.cache[b][a])return!0;var c=new RegExp("^"+this.regexify(a)+"$"),d=c.test(b);return d&&(this.cache[b]||(this.cache[b]={}),this.cache[b][a]=!0),d},regexify:function(a){return a.replace(/\./g,"\\.").replace(/\*/g,".*").replace(/#/g,"[A-Z,a-z,0-9]*")}},l={subscriptions:{},wireTaps:[],publish:function(a,b){_.each(this.wireTaps,function(c){c(a,b)}),_.each(this.subscriptions[b.exchange],function(c){_.each(c,function(c){m.configuration.resolver.compare(c.topic,b.topic)&&_.all(c.constraints,function(b){return b(a)})&&typeof c.callback=="function"&&(c.callback.apply(c.context,[a,b]),c.onHandled())})})},subscribe:function(a){var b,c,d;this.subscriptions[a.exchange]||(this.subscriptions[a.exchange]={}),this.subscriptions[a.exchange][a.topic]||(this.subscriptions[a.exchange][a.topic]=[]),b=this.subscriptions[a.exchange][a.topic].length-1;if(!_.any(this.subscriptions[a.exchange][a.topic],function(b){return b===a})){for(;b>=0;b--)if(this.subscriptions[a.exchange][a.topic][b].priority<=a.priority){this.subscriptions[a.exchange][a.topic].splice(b+1,0,a),c=!0;break}c||this.subscriptions[a.exchange][a.topic].unshift(a)}return _.bind(function(){this.unsubscribe(a)},this)},unsubscribe:function(a){if(this.subscriptions[a.exchange][a.topic]){var b=this.subscriptions[a.exchange][a.topic].length,c=0;for(;c<b;c++)if(this.subscriptions[a.exchange][a.topic][c]===a){this.subscriptions[a.exchange][a.topic].splice(c,1);break}}},addWireTap:function(a){return this.wireTaps.push(a),function(){var b=this.wireTaps.indexOf(a);b!==-1&&this.wireTaps.splice(b,1)}}},m={configuration:{bus:l,resolver:k},channel:function(a,b){var d=arguments.length===2?a:c,e=arguments.length===2?b:a;return new i(d,e)},subscribe:function(a,b,d){var e=arguments.length===3?a:c,f=arguments.length===3?b:a,g=arguments.length===3?d:b,h=this.channel(e,f);return h.subscribe(g)},publish:function(a,b,c,d){var e=g([].slice.call(arguments,0)),f=this.channel(e.envelope.exchange,e.envelope.topic);f.publish(e.payload,e.envelope)},addWireTap:function(a){this.configuration.bus.addWireTap(a)}};a.postal=m})(window)
\ No newline at end of file
+(function(a,b){var c="/",d=50,e=0,f="postal",g=function(){},h=function(a){var b={envelope:{}},d;switch(a.length){case 3:typeof a[1]=="Object"&&typeof a[2]=="Object"?(b.envelope.exchange=c,b.envelope.topic=a[0],b.payload=a[1],d=b.envelope,b.envelope=_.extend(d,a[2])):(b.envelope.exchange=a[0],b.envelope.topic=a[1],b.payload=a[2]);break;case 4:b.envelope.exchange=a[0],b.envelope.topic=a[1],b.payload=a[2],d=b.envelope,b.envelope=_.extend(d,a[3]);break;default:b.envelope.exchange=c,b.envelope.topic=a[0],b.payload=a[1]}return b},i=function(){var a;return function(b){var c=!1;return _.isString(b)?(c=b===a,a=b):(c=_.isEqual(b,a),a=_.clone(b)),!c}},j=function(a,b){this.exchange=a,this.topic=b};j.prototype={subscribe:function(a){var b=new k(this.exchange,this.topic,a);return n.configuration.bus.subscribe(b),b},publish:function(a,b){var c=_.extend({exchange:this.exchange,timeStamp:new Date,topic:this.topic},b);n.configuration.bus.publish(a,c)}};var k=function(a,b,c){this.exchange=a,this.topic=b,this.callback=c,this.priority=d,this.constraints=[],this.maxCalls=e,this.onHandled=g,this.context=null,n.publish(f,"subscription.created",{event:"subscription.created",exchange:a,topic:b})};k.prototype={unsubscribe:function(){n.configuration.bus.unsubscribe(this),n.publish(f,"subscription.removed",{event:"subscription.removed",exchange:this.exchange,topic:this.topic})},defer:function(){var a=this.callback;return this.callback=function(b){setTimeout(a,0,b)},this},disposeAfter:function(a){if(_.isNaN(a)||a<=0)throw"The value provided to disposeAfter (maxCalls) must be a number greater than zero.";var b=this.onHandled,c=_.after(a,_.bind(function(){this.unsubscribe(this)},this));return this.onHandled=function(){b.apply(this.context,arguments),c()},this},ignoreDuplicates:function(){return this.withConstraint(new i),this},whenHandledThenExecute:function(a){if(!_.isFunction(a))throw"Value provided to 'whenHandledThenExecute' must be a function";return this.onHandled=a,this},withConstraint:function(a){if(!_.isFunction(a))throw"Predicate constraint must be a function";return this.constraints.push(a),this},withConstraints:function(a){var b=this;return _.isArray(a)&&_.each(a,function(a){b.withConstraint(a)}),b},withContext:function(a){return this.context=a,this},withDebounce:function(a){if(_.isNaN(a))throw"Milliseconds must be a number";var b=this.callback;return this.callback=_.debounce(b,a),this},withDelay:function(a){if(_.isNaN(a))throw"Milliseconds must be a number";var b=this.callback;return this.callback=function(c){setTimeout(b,a,c)},this},withPriority:function(a){if(_.isNaN(a))throw"Priority must be a number";return this.priority=a,this},withThrottle:function(a){if(_.isNaN(a))throw"Milliseconds must be a number";var b=this.callback;return this.callback=_.throttle(b,a),this}};var l={cache:{},compare:function(a,b){if(this.cache[b]&&this.cache[b][a])return!0;var c=new RegExp("^"+this.regexify(a)+"$"),d=c.test(b);return d&&(this.cache[b]||(this.cache[b]={}),this.cache[b][a]=!0),d},regexify:function(a){return a.replace(/\./g,"\\.").replace(/\*/g,".*").replace(/#/g,"[A-Z,a-z,0-9]*")}},m={subscriptions:{},wireTaps:[],publish:function(a,b){this.notifyTaps(a,b),_.each(this.subscriptions[b.exchange],function(c){_.each(c,function(c){n.configuration.resolver.compare(c.topic,b.topic)&&_.all(c.constraints,function(b){return b(a)})&&typeof c.callback=="function"&&(c.callback.apply(c.context,[a,b]),c.onHandled())})})},subscribe:function(a){var b,c,d,e,f;e=this.subscriptions[a.exchange]=this.subscriptions[a.exchange]||{},f=this.subscriptions[a.exchange][a.topic]=this.subscriptions[a.exchange][a.topic]||[],b=f.length-1;if(!_.any(f,function(b){return b===a})){for(;b>=0;b--)if(f[b].priority<=a.priority){f.splice(b+1,0,a),c=!0;break}c||f.unshift(a)}},notifyTaps:function(a,b){_.each(this.wireTaps,function(c){c(a,b)})},unsubscribe:function(a){if(this.subscriptions[a.exchange][a.topic]){var b=this.subscriptions[a.exchange][a.topic].length,c=0;for(;c<b;c++)if(this.subscriptions[a.exchange][a.topic][c]===a){this.subscriptions[a.exchange][a.topic].splice(c,1);break}}},addWireTap:function(a){var b=this;return b.wireTaps.push(a),function(){var c=b.wireTaps.indexOf(a);c!==-1&&b.wireTaps.splice(c,1)}}},n={configuration:{bus:m,resolver:l},channel:function(a,b){var d=arguments.length===2?a:c,e=arguments.length===2?b:a;return new j(d,e)},subscribe:function(a,b,d){var e=arguments.length===3?a:c,f=arguments.length===3?b:a,g=arguments.length===3?d:b,h=this.channel(e,f);return h.subscribe(g)},publish:function(a,b,c,d){var e=h([].slice.call(arguments,0)),f=this.channel(e.envelope.exchange,e.envelope.topic);f.publish(e.payload,e.envelope)},addWireTap:function(a){return this.configuration.bus.addWireTap(a)},bindExchanges:function(a,b){var d=[];return _.isArray(a)||(a=[a]),_.isArray(b)||(b=[b]),_.each(a,function(a){var e=a.topic||"*";_.each(b,function(b){var e=b.exchange||c;d.push(n.subscribe(a.exchange||c,a.topic||"*",function(a,c){var d=_.isFunction(b.topic)?b.topic(c.topic):b.topic||c.topic;n.publish(e,d,a)}))})}),d}};a.postal=n})(window)
\ No newline at end of file
diff --git a/lib/node/postal.js b/lib/node/postal.js
index c49b4a8..01ca969 100644
--- a/lib/node/postal.js
+++ b/lib/node/postal.js
@@ -9,6 +9,7 @@ var _ = require('underscore');
 var DEFAULT_EXCHANGE = "/",
     DEFAULT_PRIORITY = 50,
     DEFAULT_DISPOSEAFTER = 0,
+    SYSTEM_EXCHANGE = "postal",
     NO_OP = function() { },
     parsePublishArgs = function(args) {
         var parsed = { envelope: { } }, env;
@@ -90,11 +91,24 @@ var SubscriptionDefinition = function(exchange, topic, callback) {
     this.maxCalls = DEFAULT_DISPOSEAFTER;
     this.onHandled = NO_OP;
     this.context = null;
+
+    postal.publish(SYSTEM_EXCHANGE, "subscription.created",
+        {
+            event: "subscription.created",
+            exchange: exchange,
+            topic: topic
+        });
 };
 
 SubscriptionDefinition.prototype = {
     unsubscribe: function() {
         postal.configuration.bus.unsubscribe(this);
+        postal.publish(SYSTEM_EXCHANGE, "subscription.removed",
+            {
+                event: "subscription.removed",
+                exchange: this.exchange,
+                topic: this.topic
+            });
     },
 
     defer: function() {
@@ -221,109 +235,131 @@ var bindingsResolver = {
 
 var localBus = {
 
-    subscriptions: {},
+	subscriptions: {},
 
-    wireTaps: [],
+	wireTaps: [],
 
-    publish: function(data, envelope) {
-        _.each(this.wireTaps,function(tap) {
-            tap(data, envelope);
-        });
+	publish: function(data, envelope) {
+		this.notifyTaps(data, envelope);
 
-        _.each(this.subscriptions[envelope.exchange], function(topic) {
-            _.each(topic, function(binding){
-                if(postal.configuration.resolver.compare(binding.topic, envelope.topic)) {
-                    if(_.all(binding.constraints, function(constraint) { return constraint(data); })) {
-                        if(typeof binding.callback === 'function') {
-                            binding.callback.apply(binding.context, [data, envelope]);
-                            binding.onHandled();
-                        }
-                    }
-                }
-            });
-        });
-    },
+		_.each(this.subscriptions[envelope.exchange], function(topic) {
+			_.each(topic, function(binding){
+				if(postal.configuration.resolver.compare(binding.topic, envelope.topic)) {
+					if(_.all(binding.constraints, function(constraint) { return constraint(data); })) {
+						if(typeof binding.callback === 'function') {
+							binding.callback.apply(binding.context, [data, envelope]);
+							binding.onHandled();
+						}
+					}
+				}
+			});
+		});
+	},
 
-    subscribe: function(subDef) {
-        var idx, found, fn;
+	subscribe: function(subDef) {
+		var idx, found, fn, exch, subs;
 
-        if(!this.subscriptions[subDef.exchange]) {
-            this.subscriptions[subDef.exchange] = {};
-        }
-        if(!this.subscriptions[subDef.exchange][subDef.topic]) {
-            this.subscriptions[subDef.exchange][subDef.topic] = [];
-        }
+		exch = this.subscriptions[subDef.exchange] = this.subscriptions[subDef.exchange] || {};
+		subs = this.subscriptions[subDef.exchange][subDef.topic] = this.subscriptions[subDef.exchange][subDef.topic] || [];
 
-        idx = this.subscriptions[subDef.exchange][subDef.topic].length - 1;
-        if(!_.any(this.subscriptions[subDef.exchange][subDef.topic], function(cfg) { return cfg === subDef; })) {
-            for(; idx >= 0; idx--) {
-                if(this.subscriptions[subDef.exchange][subDef.topic][idx].priority <= subDef.priority) {
-                    this.subscriptions[subDef.exchange][subDef.topic].splice(idx + 1, 0, subDef);
-                    found = true;
-                    break;
-                }
-            }
-            if(!found) {
-                this.subscriptions[subDef.exchange][subDef.topic].unshift(subDef);
-            }
-        }
+		idx = subs.length - 1;
+		if(!_.any(subs, function(cfg) { return cfg === subDef; })) {
+			for(; idx >= 0; idx--) {
+				if(subs[idx].priority <= subDef.priority) {
+					subs.splice(idx + 1, 0, subDef);
+					found = true;
+					break;
+				}
+			}
+			if(!found) {
+				subs.unshift(subDef);
+			}
+		}
+	},
 
-        return _.bind(function() { this.unsubscribe(subDef); }, this);
-    },
+	notifyTaps: function(data, envelope) {
+		_.each(this.wireTaps,function(tap) {
+			tap(data, envelope);
+		});
+	},
 
-    unsubscribe: function(config) {
-        if(this.subscriptions[config.exchange][config.topic]) {
-            var len = this.subscriptions[config.exchange][config.topic].length,
-                idx = 0;
-            for ( ; idx < len; idx++ ) {
-                if (this.subscriptions[config.exchange][config.topic][idx] === config) {
-                    this.subscriptions[config.exchange][config.topic].splice( idx, 1 );
-                    break;
-                }
-            }
-        }
-    },
+	unsubscribe: function(config) {
+		if(this.subscriptions[config.exchange][config.topic]) {
+			var len = this.subscriptions[config.exchange][config.topic].length,
+				idx = 0;
+			for ( ; idx < len; idx++ ) {
+				if (this.subscriptions[config.exchange][config.topic][idx] === config) {
+					this.subscriptions[config.exchange][config.topic].splice( idx, 1 );
+					break;
+				}
+			}
+		}
+	},
 
-    addWireTap: function(callback) {
-        this.wireTaps.push(callback);
-        return function() {
-            var idx = this.wireTaps.indexOf(callback);
-            if(idx !== -1) {
-                this.wireTaps.splice(idx,1);
-            }
-        };
-    }
+	addWireTap: function(callback) {
+		var self = this;
+		self.wireTaps.push(callback);
+		return function() {
+			var idx = self.wireTaps.indexOf(callback);
+			if(idx !== -1) {
+				self.wireTaps.splice(idx,1);
+			}
+		};
+	}
 };
 
 var postal = {
-    configuration: {
-        bus: localBus,
-        resolver: bindingsResolver
-    },
+	configuration: {
+		bus: localBus,
+		resolver: bindingsResolver
+	},
 
-    channel: function(exchange, topic) {
-        var exch = arguments.length === 2 ? exchange : DEFAULT_EXCHANGE,
-            tpc  = arguments.length === 2 ? topic : exchange;
-        return new ChannelDefinition(exch, tpc);
-    },
+	channel: function(exchange, topic) {
+		var exch = arguments.length === 2 ? exchange : DEFAULT_EXCHANGE,
+			tpc  = arguments.length === 2 ? topic : exchange;
+		return new ChannelDefinition(exch, tpc);
+	},
 
-    subscribe: function(exchange, topic, callback) {
-        var exch = arguments.length === 3 ? exchange : DEFAULT_EXCHANGE,
-            tpc  = arguments.length === 3 ? topic : exchange,
-            callbk  = arguments.length === 3 ? callback : topic;
-        var channel = this.channel(exch, tpc);
-        return channel.subscribe(callbk);
-    },
+	subscribe: function(exchange, topic, callback) {
+		var exch = arguments.length === 3 ? exchange : DEFAULT_EXCHANGE,
+			tpc  = arguments.length === 3 ? topic : exchange,
+			callbk  = arguments.length === 3 ? callback : topic;
+		var channel = this.channel(exch, tpc);
+		return channel.subscribe(callbk);
+	},
 
-    publish: function(exchange, topic, payload, envelopeOptions) {
-        var parsedArgs = parsePublishArgs([].slice.call(arguments,0));
-        var channel = this.channel(parsedArgs.envelope.exchange, parsedArgs.envelope.topic);
-        channel.publish(parsedArgs.payload, parsedArgs.envelope);
-    },
+	publish: function(exchange, topic, payload, envelopeOptions) {
+		var parsedArgs = parsePublishArgs([].slice.call(arguments,0));
+		var channel = this.channel(parsedArgs.envelope.exchange, parsedArgs.envelope.topic);
+		channel.publish(parsedArgs.payload, parsedArgs.envelope);
+	},
 
-    addWireTap: function(callback) {
-        this.configuration.bus.addWireTap(callback);
-    }
+	addWireTap: function(callback) {
+		return this.configuration.bus.addWireTap(callback);
+	},
+
+	bindExchanges: function(sources, destinations) {
+		var subscriptions = [];
+		if(!_.isArray(sources)) {
+			sources = [sources];
+		}
+		if(!_.isArray(destinations)) {
+			destinations = [destinations];
+		}
+		_.each(sources, function(source){
+			var sourceTopic = source.topic || "*";
+			_.each(destinations, function(destination) {
+				var destExchange = destination.exchange || DEFAULT_EXCHANGE;
+				subscriptions.push(
+					postal.subscribe(source.exchange || DEFAULT_EXCHANGE, source.topic || "*", function(msg, env) {
+						var destTopic = _.isFunction(destination.topic) ? destination.topic(env.topic) : destination.topic || env.topic;
+						postal.publish(destExchange, destTopic, msg);
+					})
+				);
+			});
+		});
+		return subscriptions;
+	}
 };
 
 module.exports = postal;
\ No newline at end of file