added social bookmarking button

content/index/05_left

@@ -35,6 +35,13 @@
 			<li>Spanish</li>
 		</ul>
 	</div>
+	<div class="leftcontent" style="text-align:center;">
+		<script type="text/javascript">
+		addthis_url    = location.href;   
+		addthis_title  = document.title;  
+		addthis_pub    = 'senselab';     
+		</script><script type="text/javascript" src="http://s7.addthis.com/js/addthis_widget.php?v=12" ></script>
+	</div>
 
 </div>