I recently installed AdLogger because I suspected someone was clicking too much. When I check with AdLogger there are some clicks that Google don't show up on AdSense Report. They are from different IPs, only 1 click, so no reason to cancel them. Even so when G cancel some clicks, it usually shows the number of clicks, but with $0 earnings. Is AdLogger a lier or is Google stealing clicks?
taken directly from the adlogger FAQ AdLogger reports a click but I don’t see it in my Google AdSense account. Why not? Is Google ripping me off!? No, Google is not ripping you off. AdLogger does its best to determine when a click is made on your web page. But because there’s no Google AdSense API that allows you to login to your official AdSense logs and get the exact same stats that Google gets about your website, it’s impossible to be 100% accurate. AdLogger has to estimate when a click occurs on your AdSense ads. Because of this, there will always be some discrepencies in the click counts. Also, be sure to read the other questions, as a lot of them revolve around this point, too. hope this helps, Jason