diff --git a/htroot/AccessTracker_p.java b/htroot/AccessTracker_p.java
index 6dcb80c71..07f9e422d 100644
--- a/htroot/AccessTracker_p.java
+++ b/htroot/AccessTracker_p.java
@@ -24,12 +24,10 @@
 // along with this program; if not, write to the Free Software
 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
-import java.util.AbstractMap;
 import java.util.Collection;
 import java.util.ConcurrentModificationException;
 import java.util.Date;
 import java.util.Iterator;
-import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
@@ -39,9 +37,7 @@ import java.util.concurrent.LinkedBlockingQueue;
 import net.yacy.cora.date.GenericFormatter;
 import net.yacy.cora.protocol.Domains;
 import net.yacy.cora.protocol.RequestHeader;
-import net.yacy.cora.sorting.ConcurrentScoreMap;
 import net.yacy.cora.sorting.OrderedScoreMap;
-import net.yacy.cora.sorting.ScoreMap;
 import net.yacy.cora.util.CommonPattern;
 import net.yacy.cora.util.ConcurrentLog;
 import net.yacy.peers.Seed;
diff --git a/htroot/CrawlStartExpert.html b/htroot/CrawlStartExpert.html
index b07b26aed..0681684ba 100644
--- a/htroot/CrawlStartExpert.html
+++ b/htroot/CrawlStartExpert.html
@@ -370,10 +370,10 @@
           <legend>Content Filter</legend>
           <p>These are limitations on parts of a document. The filter will be applied after a web page was loaded.</p>
           <dl>
-	        <dt>Filter div class names</dt>
+	        <dt>Filter div or nav class names</dt>
 	        <dd>
             <table style="border-width: 0px">
-		    <tr><td style="width:110px">set of CSS class names</td><td><input name="ignoreclassname" id="ignoreclassname" type="text" size="55" maxlength="100000" value="#[ignoreclassname]#" onblur="if (this.value=='') this.value='';"/></td><td>comma-separated list of &lt;div&gt; element class names which should be filtered out</td></tr>
+		    <tr><td style="width:110px">set of CSS class names</td><td><input name="ignoreclassname" id="ignoreclassname" type="text" size="55" maxlength="100000" value="#[ignoreclassname]#" onblur="if (this.value=='') this.value='';"/></td><td>comma-separated list of &lt;div&gt; or &lt;nav&gt; element class names which should be filtered out</td></tr>
 			</table>
 	        </dd>
 	      </dl>
diff --git a/source/net/yacy/cora/protocol/Scanner.java b/source/net/yacy/cora/protocol/Scanner.java
index 6d11388aa..8c84931a9 100644
--- a/source/net/yacy/cora/protocol/Scanner.java
+++ b/source/net/yacy/cora/protocol/Scanner.java
@@ -152,6 +152,7 @@ public class Scanner {
                     if (access != Access.unknown) Scanner.this.services.put(this, access);
                 }
             } catch (final OutOfMemoryError e) {
+                e.printStackTrace();
             }
         }
         public long age() {
diff --git a/source/net/yacy/document/parser/html/ContentScraper.java b/source/net/yacy/document/parser/html/ContentScraper.java
index 1a4d46bab..36fb1e34c 100644
--- a/source/net/yacy/document/parser/html/ContentScraper.java
+++ b/source/net/yacy/document/parser/html/ContentScraper.java
@@ -129,6 +129,7 @@ public class ContentScraper extends AbstractScraper implements Scraper {
         script(TagType.pair),
         span(TagType.pair),
         div(TagType.pair),
+        nav(TagType.pair),
         article(TagType.pair), // html5
         time(TagType.pair), // html5 <time datetime>
         // tags used to capture tag content
@@ -1020,7 +1021,10 @@ public class ContentScraper extends AbstractScraper implements Scraper {
 		}
 		
 		/* Parent is not marked as ignored : let's check the current tag */
-		if (!ignore && this.ignoreDivClassNames != null && tag != null && TagName.div.name().equals(tag.name)) {
+		if (!ignore &&
+		        this.ignoreDivClassNames != null &&
+		        tag != null &&
+		        (TagName.div.name().equals(tag.name) || TagName.nav.name().equals(tag.name))) {
 			final String classAttr = tag.opts.getProperty("class", EMPTY_STRING);
 			final Set<String> classes = ContentScraper.parseSpaceSeparatedTokens(classAttr);
 			ignore = !Collections.disjoint(this.ignoreDivClassNames, classes);