clicktracking is one of UsabilityInitiative extension. accordding to MediaWikiwiki, "This feature is used to track users' navigation around the wiki by 
monitoring each click they make. It has a couple of API modules.&quot; .see <a href="http://www.mediawiki.org/wiki/Extension:ClickTracking">http://www.mediawiki.org/wiki/Extension:ClickTracking</a><br>