I signed up for Google adsense about an year ago. Although I did not earn to get a pay check from Google (I may have earned around $60), I was surprised receive the e-mail from Google as below. They mention about invalid clicks but my web stats does not show any such clicks or visit to my sites, nothing unsual seems to have happened. I just wonder if Google can shut down your account just like that, is it worth working with adsense. Is there a way to get around the problem? Below is the e-mail that I got from Google
"While going through our records recently, we found that your AdSense
account has posed a significant risk to our AdWords advertisers. Since
keeping your account in our publisher network may financially damage our
advertisers in the future, we've decided to disable your account.
Please understand that we consider this a necessary step to protect the
interests of both our advertisers and our other AdSense publishers. We
realize the inconvenience this may cause you, and we thank you in advance for your understanding and cooperation"