Ok... Today I was tallying up stuff and it didn't work out... I counted all the impressions from the channels and all the clicks, and the "total impressions" and "total clicks" were both 1 more then the sum of all the channel data... Is this something I should be worried about and report? Thanks
Someone could've copied your entire website including your Adsense codes and hosted it on their own domain.
Do you use your adsense pub ID here by any chance? Or on any other ad revenue sharing system for that matter that you don't have a channel for?