diff --git a/src/components/structures/RoomDirectory.js b/src/components/structures/RoomDirectory.js
index 35194883..ae058511 100644
--- a/src/components/structures/RoomDirectory.js
+++ b/src/components/structures/RoomDirectory.js
@@ -32,16 +32,21 @@ var sanitizeHtml = require('sanitize-html');
 
 linkifyMatrix(linkify);
 
-const NETWORK_PATTERNS = {
-    'gitter': /#gitter_.*/,
-    'irc:freenode': /#freenode_.*:.*/,
-    'irc:mozilla': /#mozilla_.*:.*/,
-    'irc:w3c': /@w3c_.*:.*/,
-};
-
 module.exports = React.createClass({
     displayName: 'RoomDirectory',
 
+    propTypes: {
+        config: React.PropTypes.object,
+    },
+
+    getDefaultProps: function() {
+        return {
+            config: {
+                networks: [],
+            },
+        }
+    },
+
     getInitialState: function() {
         return {
             publicRooms: [],
@@ -52,6 +57,14 @@ module.exports = React.createClass({
     },
 
     componentWillMount: function() {
+        // precompile Regexps
+        this.networkPatterns = {};
+        if (this.props.config.networkPatterns) {
+            for (const network of Object.keys(this.props.config.networkPatterns)) {
+                this.networkPatterns[network] = new RegExp(this.props.config.networkPatterns[network]);
+            }
+        }
+
         // dis.dispatch({
         //     action: 'ui_opacity',
         //     sideOpacity: 0.3,
@@ -291,8 +304,8 @@ module.exports = React.createClass({
     _networkForRoom(room) {
         if (room.aliases) {
             for (const alias of room.aliases) {
-                for (const network of Object.keys(NETWORK_PATTERNS)) {
-                    if (NETWORK_PATTERNS[network].test(alias)) return network;
+                for (const network of Object.keys(this.networkPatterns)) {
+                    if (this.networkPatterns[network].test(alias)) return network;
                 }
             }
         }
@@ -318,7 +331,7 @@ module.exports = React.createClass({
                 <div className="mx_RoomDirectory_list">
                     <div className="mx_RoomDirectory_listheader">
                         <input ref="roomAlias" placeholder="Join a room (e.g. #foo:domain.com)" className="mx_RoomDirectory_input" size="64" onKeyUp={ this.onKeyUp }/>
-                        <NetworkDropdown onNetworkChange={this.onNetworkChange} />
+                        <NetworkDropdown config={this.props.config} onNetworkChange={this.onNetworkChange} />
                     </div>
                     <GeminiScrollbar className="mx_RoomDirectory_tableWrapper">
                         <table ref="directory_table" className="mx_RoomDirectory_table">
diff --git a/src/components/views/directory/NetworkDropdown.js b/src/components/views/directory/NetworkDropdown.js
index 1ffa9c94..e1de4ffe 100644
--- a/src/components/views/directory/NetworkDropdown.js
+++ b/src/components/views/directory/NetworkDropdown.js
@@ -33,30 +33,6 @@ export default class NetworkDropdown extends React.Component {
             expanded: false,
             selectedNetwork: null,
         };
-
-        this.networks = [
-            'matrix:matrix_org',
-            'gitter',
-            'irc:freenode',
-            'irc:mozilla',
-            'irc:w3c',
-        ];
-
-        this.networkNames = {
-            'matrix:matrix_org': 'matrix.org',
-            'irc:freenode': 'Freenode',
-            'irc:mozilla': 'Mozilla',
-            'irc:w3c': 'W3C',
-            'gitter': 'Gitter',
-        };
-
-        this.networkIcons = {
-            'matrix:matrix_org': '//matrix.org/favicon.ico',
-            'irc:freenode': '//matrix.org/_matrix/media/v1/download/matrix.org/DHLHpDDgWNNejFmrewvwEAHX',
-            'irc:mozilla': '//matrix.org/_matrix/media/v1/download/matrix.org/DHLHpDDgWNNejFmrewvwEAHX',
-            'irc:w3c': '//matrix.org/_matrix/media/v1/download/matrix.org/DHLHpDDgWNNejFmrewvwEAHX',
-            'gitter': '//gitter.im/favicon.ico',
-        };
     }
 
     componentWillMount() {
@@ -124,8 +100,8 @@ export default class NetworkDropdown extends React.Component {
             name = 'All networks';
             span_class = 'mx_NetworkDropdown_menu_all';
         } else {
-            name = this.networkNames[network];
-            icon = <img src={this.networkIcons[network]} />;
+            name = this.props.config.networkNames[network];
+            icon = <img src={this.props.config.networkIcons[network]} />;
             span_class = 'mx_NetworkDropdown_menu_network';
         }
 
@@ -143,7 +119,7 @@ export default class NetworkDropdown extends React.Component {
         let menu;
         if (this.state.expanded) {
            const menu_options = [this._optionForNetwork(null)];
-            for (const network of this.networks) {
+            for (const network of this.props.config.networks) {
                 menu_options.push(this._optionForNetwork(network));
             }
             menu = <div className="mx_NetworkDropdown_menu">
@@ -163,5 +139,12 @@ export default class NetworkDropdown extends React.Component {
 
 NetworkDropdown.propTypes = {
     onNetworkChange: React.PropTypes.func.isRequired,
+    config: React.PropTypes.object,
+};
+
+NetworkDropdown.defaultProps = {
+    config: {
+        networks: [],
+    }
 };