we all love cheating the Google Ad Network system using Adsense click code but there is recent news of google adding Whistleblower to thier searches. it stops people using exploties to make money off of thier site. if you do happend to get caught then all the clicks were invalid. dont get to caught up. also rumors about yahoo and bing adding something similar. im not 100% how its going to work but either they will higher someone to do it, or make it open to the public.