http://www.helium.com/knowledge/6486-how-to-tell-when-quotclick-fraudquot-is-being-perpetrated-on-your-adsense.xml Helium.com > Web Advertising > How to tell when "click fraud" is being perpetrated on your Adsense account en-us Copyright Helium.com Mon, 05 May 2008 19:39:55 GMT Mon, 05 May 2008 19:39:55 GMT