diff --git a/htroot/Crawler_p.html b/htroot/Crawler_p.html
index 3b06b914c..ed9e7844a 100644
--- a/htroot/Crawler_p.html
+++ b/htroot/Crawler_p.html
@@ -178,6 +178,26 @@
   </tr>
   #{/list}# 
 </table>
+#(linkstructure)#::
+<script type="text/javascript">
+  <!--
+    imagestub = "WebStructurePicture_p.png?host=#[hosts]#&depth=3&width=1024&height=576&nodes=300&time=1000&colortext=888888&colorback=FFFFFF&colordot=11BB11&colorline=222222&colorlineend=333333";
+    idx = 0;
+    setTimeout("doanimation()", 2000);
+    function doanimation() {
+      var accessPicture = document.getElementById("WebPicture");
+      if (accessPicture != null) {
+        idx++;
+        accessPicture.src = imagestub + "&idx=" + idx;
+        setTimeout("doanimation()", 1000);
+      }
+    }
+  -->
+  </script>
+  <div style="clear:both; text-align:left;">
+  <img id="WebPicture" src="/env/grafics/invisible.png"/>
+  </div>
+#(/linkstructure)#
 <h3>Crawled Pages</h3>
 <p id="crawllist"></p>
 </fieldset>
diff --git a/htroot/Crawler_p.java b/htroot/Crawler_p.java
index eb62823d5..dd607bfa8 100644
--- a/htroot/Crawler_p.java
+++ b/htroot/Crawler_p.java
@@ -171,7 +171,7 @@ public class Crawler_p {
                     try {
                         DigestURI crawlingStartURL = new DigestURI(crawlingStart);
                         rootURLs.add(crawlingStartURL);
-                        crawlName += crawlingStartURL.getHost() + "_";
+                        crawlName += crawlingStartURL.getHost() + ',';
                         if (crawlingStartURL != null && (crawlingStartURL.isFile() || crawlingStartURL.isSMB())) storeHTCache = false;
                         
                     } catch (MalformedURLException e) {
@@ -180,8 +180,11 @@ public class Crawler_p {
                 } else {
                 	crawlName = crawlingFile.getName();
                 }
-                if (crawlName.length() > 80) crawlName = crawlName.substring(0, 80);
-                if (crawlName.endsWith("_")) crawlName = crawlName.substring(0, crawlName.length() - 1);
+                if (crawlName.length() > 256) {
+                    int p = crawlName.lastIndexOf(',');
+                    if (p >= 8) crawlName = crawlName.substring(0, p);
+                }
+                if (crawlName.endsWith(",")) crawlName = crawlName.substring(0, crawlName.length() - 1);
 
                 
                 // set the crawl filter
@@ -515,16 +518,41 @@ public class Crawler_p {
         final int domlistlength = (post == null) ? 160 : post.getInt("domlistlength", 160);
         CrawlProfile profile;
         // put active crawls into list
+        String hosts = "";
         for (final byte[] h: sb.crawler.getActive()) {
             profile = sb.crawler.getActive(h);
         	if (CrawlProfile.ignoreNames.contains(profile.name())) continue;
             profile.putProfileEntry("crawlProfilesShow_list_", prop, true, dark, count, domlistlength);
+            if (profile.urlMustMatchPattern() == CrawlProfile.MATCH_ALL_PATTERN) {
+                hosts = hosts + "," + profile.name();
+            }
             dark = !dark;
             count++;
         }
         prop.put("crawlProfilesShow_list", count);
         prop.put("crawlProfilesShow", count == 0 ? 0 : 1);
 
+        if (count > 0) {
+            // collect the host names for 'wide' crawls which can be visualized
+            boolean showLinkstructure = hosts.length() > 0;
+            /*
+            // check if there is actually something to see
+            if (showLinkstructure) {
+                showLinkstructure = false;
+                for (String host: hosts.substring(1).split(",")) {
+                    String hash = null;
+                    try {hash = ASCII.String((new DigestURI("http://" + host)).hash(), 6, 6);} catch (final MalformedURLException e) {Log.logException(e);}
+                    if (hash != null && sb.webStructure.referencesCount(hash) > 0) {showLinkstructure = true; break;}
+                }
+            }
+            */
+            if (showLinkstructure) {
+                prop.put("crawlProfilesShow_linkstructure", 1);
+                prop.put("crawlProfilesShow_linkstructure_hosts", hosts.substring(1));
+            } else {
+                prop.put("crawlProfilesShow_linkstructure", 0);
+            }
+        }
 
         // return rewrite properties
         return prop;
diff --git a/htroot/QuickCrawlLink_p.java b/htroot/QuickCrawlLink_p.java
index 10e436a1a..894427fce 100644
--- a/htroot/QuickCrawlLink_p.java
+++ b/htroot/QuickCrawlLink_p.java
@@ -133,7 +133,7 @@ public class QuickCrawlLink_p {
             CrawlProfile pe = null;
             try {
                 pe = new CrawlProfile(
-                        crawlingStartURL.toNormalform(true),
+                        (crawlingStartURL.getHost() == null) ? crawlingStartURL.toNormalform(true) : crawlingStartURL.getHost(),
                         crawlingMustMatch,               //crawlerUrlMustMatch
                         crawlingMustNotMatch,            //crawlerUrlMustNotMatch
                         CrawlProfile.MATCH_ALL_STRING,   //crawlerIpMustMatch
diff --git a/htroot/WebStructurePicture_p.java b/htroot/WebStructurePicture_p.java
index 1d703049d..f48212fe7 100644
--- a/htroot/WebStructurePicture_p.java
+++ b/htroot/WebStructurePicture_p.java
@@ -116,7 +116,7 @@ public class WebStructurePicture_p {
                 String hash = null;
                 try {hash = ASCII.String((new DigestURI("http://" + host)).hash(), 6, 6);} catch (final MalformedURLException e) {Log.logException(e);}
                 Map.Entry<String, String> centernode = new AbstractMap.SimpleEntry<String, String>(hash, host);
-                double angle = 2.0d * i * Math.PI / hostlist.length - Math.PI / hostlist.length;
+                double angle = 2.0d * i * Math.PI / hostlist.length;
                 if (hostlist.length == 3) angle -= Math.PI / 2;
                 if (hostlist.length == 4) angle += Math.PI / 4;
                 graph.addNode(centernode.getValue(), Math.cos(angle) / 8, Math.sin(angle) / 8, 0);
@@ -128,7 +128,8 @@ public class WebStructurePicture_p {
                 // test with: http://localhost:8090/WebStructurePicture_p.png?pa=1&ral=0.7&raa=0.5&rar=2&rel=0.5&rea=1&rer=2
                 GraphPlotter.Ribbon rAll = new GraphPlotter.Ribbon(post.getFloat("ral", 0.1f), post.getFloat("raa", 0.1f), post.getFloat("rar", 0.1f));
                 GraphPlotter.Ribbon rEdge = new GraphPlotter.Ribbon(post.getFloat("rel", 0.05f), post.getFloat("rea", 0.1f), post.getFloat("rer", 0.1f));
-                for (int i = 0; i < post.getInt("pa", 1); i++) graph = graph.physics(rAll, rEdge);
+                int pa = post.getInt("pa", 0);
+                for (int i = 0; i < pa; i++) graph = graph.physics(rAll, rEdge);
             }
 
             // draw the graph
diff --git a/source/net/yacy/crawler/retrieval/HTTPLoader.java b/source/net/yacy/crawler/retrieval/HTTPLoader.java
index dfa668c95..bad4a153b 100644
--- a/source/net/yacy/crawler/retrieval/HTTPLoader.java
+++ b/source/net/yacy/crawler/retrieval/HTTPLoader.java
@@ -156,6 +156,8 @@ public final class HTTPLoader {
             this.log.logInfo("CRAWLER Redirection detected ('" + client.getHttpResponse().getStatusLine() + "') for URL " + requestURLString);
             this.log.logInfo("CRAWLER ..Redirecting request to: " + redirectionUrl);
 
+            this.sb.webStructure.generateCitationReference(url, redirectionUrl);
+            
             if (this.sb.getConfigBool(SwitchboardConstants.CRAWLER_RECORD_REDIRECTS, true)) {
                 this.sb.crawlQueues.errorURL.push(request, myHash, new Date(), 1, FailCategory.FINAL_REDIRECT_RULE, "redirect to " + redirectionUrlString, statusCode);
             }
diff --git a/source/net/yacy/peers/graphics/WebStructureGraph.java b/source/net/yacy/peers/graphics/WebStructureGraph.java
index d7bea501c..49e0bcb4f 100644
--- a/source/net/yacy/peers/graphics/WebStructureGraph.java
+++ b/source/net/yacy/peers/graphics/WebStructureGraph.java
@@ -171,9 +171,27 @@ public class WebStructureGraph {
             }
         }
         final LearnObject lro = new LearnObject(url, globalRefURLs);
+        if (!globalRefURLs.isEmpty()) {
+            try {
+                if (this.publicRefDNSResolvingWorker.isAlive()) {
+                    this.publicRefDNSResolvingQueue.put(lro);
+                } else {
+                    learnrefs(lro);
+                }
+            } catch ( final InterruptedException e ) {
+                learnrefs(lro);
+            }
+        }
+    }
+    
+    public void generateCitationReference(final DigestURI from, final DigestURI to) {
+        final HashSet<MultiProtocolURI> globalRefURLs = new HashSet<MultiProtocolURI>();
+        final String refhost = from.getHost();
+        if (refhost != null && to.getHost() != null && !to.getHost().equals(refhost)) globalRefURLs.add(to);
+        final LearnObject lro = new LearnObject(from, globalRefURLs);
         if ( !globalRefURLs.isEmpty() ) {
             try {
-                if ( this.publicRefDNSResolvingWorker.isAlive() ) {
+                if (this.publicRefDNSResolvingWorker.isAlive()) {
                     this.publicRefDNSResolvingQueue.put(lro);
                 } else {
                     learnrefs(lro);
diff --git a/source/net/yacy/visualization/GraphPlotter.java b/source/net/yacy/visualization/GraphPlotter.java
index 592c59494..39ea0c22d 100644
--- a/source/net/yacy/visualization/GraphPlotter.java
+++ b/source/net/yacy/visualization/GraphPlotter.java
@@ -182,7 +182,7 @@ public class GraphPlotter implements Cloneable {
     }
 
     public boolean hasEdge(final String fromNode, final String toNode) {
-        return this.edges.contains(fromNode + "-" + toNode);
+        return this.edges.contains(fromNode + '-' + toNode);
     }
 
     public void setEdge(final String fromNode, final String toNode) {
@@ -190,18 +190,18 @@ public class GraphPlotter implements Cloneable {
         final Point to = this.nodes.get(toNode);
         assert from != null;
         assert to != null;
-        this.edges.add(fromNode + "$" + toNode);
+        this.edges.add(fromNode + '$' + toNode);
     }
 
     public Collection<String> getEdges(final String node, boolean start) {
         Collection<String> c = new ArrayList<String>();
         if (start) {
-            String s = node + "$";
+            String s = node + '$';
             for (String e: this.edges) {
                 if (e.startsWith(s)) c.add(e.substring(s.length()));
             }
         } else {
-            String s = "$" + node;
+            String s = '$' + node;
             for (String e: this.edges) {
                 if (e.endsWith(s)) c.add(e.substring(0, e.length() - s.length()));
             }
@@ -219,7 +219,7 @@ public class GraphPlotter implements Cloneable {
             entry = i.next();
             name = entry.getKey();
             c = entry.getValue();
-            System.out.println("point(" + c.x + ", " + c.y + ", " + c.layer + ") [" + name + "]");
+            System.out.println("point(" + c.x + ", " + c.y + ", " + c.layer + ") [" + name + ']');
         }
         final Iterator<String> j = this.edges.iterator();
         while (j.hasNext()) {