diff --git a/config.json b/config.json
index 314c6b4..527e2ef 100644
--- a/config.json
+++ b/config.json
@@ -23,8 +23,10 @@
       "title": "Jahresstatistik - weiteren Statistiken"
     }
   ],
-  // String or array of data provider are supported
-  "dataPath": "https://regensburg.freifunk.net/data/",
+  // Array of data provider are supported
+  "dataPath": [
+    "https://regensburg.freifunk.net/data/"
+  ],
   "siteName": "Freifunk Regensburg",
   "mapLayers": [
     {
diff --git a/lib/forcegraph.js b/lib/forcegraph.js
index 1d4cf67..7346c5e 100644
--- a/lib/forcegraph.js
+++ b/lib/forcegraph.js
@@ -198,7 +198,7 @@ define(['d3-selection', 'd3-force', 'd3-zoom', 'd3-drag', 'd3-timer', 'd3-ease',
       });
 
       self.setData = function setData(data) {
-        intNodes = data.nodes.all.map(function (d) {
+        intNodes = data.nodes.online.map(function (d) {
           var e = dictNodes[d.node_id];
           if (!e) {
             e = {};
@@ -208,12 +208,10 @@ define(['d3-selection', 'd3-force', 'd3-zoom', 'd3-drag', 'd3-timer', 'd3-ease',
           e.o = d;
 
           return e;
-        }).filter(function (e) {
-          return e.o.is_online;
         });
 
         intLinks = data.links.filter(function (d) {
-          return dictNodes[d.source.node_id].o.is_online && dictNodes[d.target.node_id].o.is_online;
+          return data.nodeDict[d.source.node_id].is_online && data.nodeDict[d.target.node_id].is_online;
         }).map(function (d) {
           return {
             o: d,
@@ -261,9 +259,6 @@ define(['d3-selection', 'd3-force', 'd3-zoom', 'd3-drag', 'd3-timer', 'd3-ease',
           draw.setHighlight({ type: 'link', o: d });
           for (var i = 0; i < intLinks.length; i++) {
             var l = intLinks[i];
-            if (l.o !== d) {
-              continue;
-            }
             return [(l.source.x + l.target.x) / 2, (l.source.y + l.target.y) / 2, (ZOOM_MAX / 2) + ZOOM_MIN];
           }
           return [0, 0, (ZOOM_MIN + 1) / 2];
diff --git a/lib/infobox/node.js b/lib/infobox/node.js
index 8410286..da69edc 100644
--- a/lib/infobox/node.js
+++ b/lib/infobox/node.js
@@ -293,9 +293,9 @@ define(['sorttable', 'snabbdom', 'd3-interpolate', 'moment', 'helper'],
       };
 
       self.setData = function setData(data) {
-        d = data.nodes.all.find(function (a) {
-          return a.node_id === d.node_id;
-        });
+        if (data.nodeDict[d.node_id]) {
+          d = data.nodeDict[d.node_id];
+        }
         self.render();
       };
       return self;
diff --git a/lib/legend.js b/lib/legend.js
index 5ccac00..549b87a 100644
--- a/lib/legend.js
+++ b/lib/legend.js
@@ -7,12 +7,12 @@ define(['helper'], function (helper) {
     var timestamp = document.createTextNode('');
 
     self.setData = function setData(d) {
-      var totalNodes = helper.sum(d.nodes.all.map(helper.one));
-      var totalOnlineNodes = helper.sum(d.nodes.all.filter(helper.online).map(helper.one));
-      var totalClients = helper.sum(d.nodes.all.filter(helper.online).map(function (n) {
+      var totalNodes = Object.keys(d.nodeDict).length;
+      var totalOnlineNodes = d.nodes.online.length;
+      var totalClients = helper.sum(d.nodes.online.map(function (n) {
         return n.clients;
       }));
-      var totalGateways = helper.sum(d.nodes.all.filter(helper.online).filter(function (n) {
+      var totalGateways = helper.sum(d.nodes.online.filter(function (n) {
         return n.is_gateway;
       }).map(helper.one));
 
diff --git a/lib/main.js b/lib/main.js
index 3f18c4e..45bf4f0 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -23,8 +23,15 @@ define(['moment', 'utils/router', 'leaflet', 'gui', 'helper', 'utils/language'],
         var now = moment();
         var age = moment(now).subtract(config.maxAge, 'days');
 
-        var newnodes = helper.limit('firstseen', age, helper.sortByKey('firstseen', nodes).filter(helper.online));
-        var lostnodes = helper.limit('lastseen', age, helper.sortByKey('lastseen', nodes).filter(helper.offline));
+        var online = nodes.filter(function (d) {
+          return d.is_online;
+        });
+        var offline = nodes.filter(function (d) {
+          return !d.is_online;
+        });
+
+        var newnodes = helper.limit('firstseen', age, helper.sortByKey('firstseen', online));
+        var lostnodes = helper.limit('lastseen', age, helper.sortByKey('lastseen', offline));
 
         nodes.forEach(function (d) {
           d.neighbours = [];
@@ -50,15 +57,13 @@ define(['moment', 'utils/router', 'leaflet', 'gui', 'helper', 'utils/language'],
           }
         });
 
-        links.sort(function (a, b) {
-          return b.source_tq - a.source_tq;
-        });
-
         return {
           now: now,
           timestamp: moment.utc(timestamp).local(),
           nodes: {
             all: nodes,
+            online: online,
+            offline: offline,
             new: newnodes,
             lost: lostnodes
           },
@@ -70,22 +75,14 @@ define(['moment', 'utils/router', 'leaflet', 'gui', 'helper', 'utils/language'],
       var language = new Language(config);
       var router = new Router(language);
 
-      var urls = [];
-
-      if (typeof config.dataPath === 'string' || config.dataPath instanceof String) {
-        config.dataPath = [config.dataPath];
-      }
-
-      for (var i in config.dataPath) {
-        if (config.dataPath.hasOwnProperty(i)) {
-          urls.push(config.dataPath[i] + 'meshviewer.json');
-        }
-      }
+      config.dataPath.forEach(function (d, i) {
+        config.dataPath[i] += 'meshviewer.json';
+      });
 
       language.init(router);
 
       function update() {
-        return Promise.all(urls.map(helper.getJSON))
+        return Promise.all(config.dataPath.map(helper.getJSON))
           .then(handleData);
       }
 
diff --git a/lib/map/clientlayer.js b/lib/map/clientlayer.js
index 42e57ef..dad1f07 100644
--- a/lib/map/clientlayer.js
+++ b/lib/map/clientlayer.js
@@ -13,7 +13,7 @@ define(['leaflet', 'rbush', 'helper'],
       setData: function (data) {
         var rtreeOnlineAll = rbush(9);
 
-        this.data = rtreeOnlineAll.load(data.nodes.all.filter(helper.online).filter(helper.hasLocation).map(this.mapRTree));
+        this.data = rtreeOnlineAll.load(data.nodes.online.filter(helper.hasLocation).map(this.mapRTree));
 
         // pre-calculate start angles
         this.data.all().forEach(function (n) {
diff --git a/lib/map/labellayer.js b/lib/map/labellayer.js
index 78a4774..fbfef01 100644
--- a/lib/map/labellayer.js
+++ b/lib/map/labellayer.js
@@ -154,8 +154,8 @@ define(['leaflet', 'rbush', 'helper', 'moment'],
         var lines = addLinksToMap(linkDict, linkScale, data.links, router);
         groupLines = L.featureGroup(lines).addTo(map);
 
-        var nodesOnline = helper.subtract(data.nodes.all.filter(helper.online), data.nodes.new);
-        var nodesOffline = helper.subtract(data.nodes.all.filter(helper.offline), data.nodes.lost);
+        var nodesOnline = helper.subtract(data.nodes.online, data.nodes.new);
+        var nodesOffline = helper.subtract(data.nodes.offline, data.nodes.lost);
 
         var markersOnline = nodesOnline.filter(helper.hasLocation)
           .map(mkMarker(nodeDict, function () {
diff --git a/lib/nodelist.js b/lib/nodelist.js
index dd65309..f55fc81 100644
--- a/lib/nodelist.js
+++ b/lib/nodelist.js
@@ -92,7 +92,6 @@ define(['sorttable', 'snabbdom', 'helper'], function (SortTable, V, helper) {
         } else {
           n.uptime = e.lastseen - d.now;
         }
-        n.neighbours = e.neighbours;
         return n;
       });
 
diff --git a/lib/proportions.js b/lib/proportions.js
index 1a54987..95e496b 100644
--- a/lib/proportions.js
+++ b/lib/proportions.js
@@ -76,7 +76,7 @@ define(['d3-interpolate', 'snabbdom', 'filters/genericnode', 'helper'],
       }
 
       self.setData = function setData(data) {
-        var onlineNodes = data.nodes.all.filter(helper.online);
+        var onlineNodes = data.nodes.online;
         var nodes = onlineNodes.concat(data.nodes.lost);
 
         function hostnameOfNodeID(nodeid) {
diff --git a/lib/utils/helper.js b/lib/utils/helper.js
index 212f5a5..8d4da14 100644
--- a/lib/utils/helper.js
+++ b/lib/utils/helper.js
@@ -27,9 +27,9 @@ define({
   },
 
   sortByKey: function sortByKey(key, d) {
-    return d.slice().sort(function (a, b) {
-      return a[key] - b[key];
-    }).reverse();
+    return d.sort(function (a, b) {
+      return b[key] - a[key];
+    });
   },
 
   limit: function limit(key, m, d) {
@@ -72,15 +72,6 @@ define({
     return s;
   },
 
-  /* Helpers working with nodes */
-  offline: function offline(d) {
-    return !d.is_online;
-  },
-
-  online: function online(d) {
-    return d.is_online;
-  },
-
   hasLocation: function hasLocation(d) {
     return 'location' in d &&
       Math.abs(d.location.latitude) < 90 &&
@@ -95,7 +86,7 @@ define({
     });
 
     return a.filter(function (d) {
-      return !(d.node_id in ids);
+      return !ids[d.node_id];
     });
   },
 
diff --git a/lib/utils/router.js b/lib/utils/router.js
index 7d144a4..04ae87c 100644
--- a/lib/utils/router.js
+++ b/lib/utils/router.js
@@ -3,7 +3,7 @@ define(['Navigo'], function (Navigo) {
 
   return function (language) {
     var init = false;
-    var objects = { nodes: {}, links: {}, nodeDict: {} };
+    var objects = {};
     var targets = [];
     var views = {};
     var current = {};
@@ -16,17 +16,20 @@ define(['Navigo'], function (Navigo) {
     }
 
     function gotoNode(d) {
-      if (d.nodeId in objects.nodes) {
+      if (objects.nodeDict[d.nodeId]) {
         targets.forEach(function (t) {
-          t.gotoNode(objects.nodes[d.nodeId], objects.nodeDict);
+          t.gotoNode(objects.nodeDict[d.nodeId], objects.nodeDict);
         });
       }
     }
 
     function gotoLink(d) {
-      if (d.linkId in objects.links) {
+      var link = objects.links.find(function (value) {
+        return value.id === d.linkId;
+      });
+      if (link) {
         targets.forEach(function (t) {
-          t.gotoLink(objects.links[d.linkId]);
+          t.gotoLink(link);
         });
       }
     }
@@ -139,17 +142,7 @@ define(['Navigo'], function (Navigo) {
     };
 
     router.setData = function setData(data) {
-      objects.nodes = {};
-      objects.links = {};
-      objects.nodeDict = data.nodeDict;
-
-      data.nodes.all.forEach(function (d) {
-        objects.nodes[d.node_id] = d;
-      });
-
-      data.links.forEach(function (d) {
-        objects.links[d.id] = d;
-      });
+      objects = data;
     };
 
     return router;