I own a few micro niche sites, last week i got my adsense account blocked because invalid clicks (of course it wasnt me) , of course google didnt care that it wasnt me and they didnt even asnwer me. I put on my brother ads and today i saw through statcounter that some person from the same ip at the same time clicked 23 times in my ad, obviously someone is trying to get me banned again. How can i prevent from peoples to click more then one time in my ads? any plug in or script? someone can help?!!