About a year ago we heard rumors that Google AdSense might test floating ads. You know those ads that actually move with you as you scroll through the page. Some floating ads run across the screen and jump in your face. here are some examples of floating ads.
One would immediately think that floating your AdSense ads in this manner are totally against Google's terms of service. Why? Because you cannot bring crazy attention to your ads, which drive people to click on them even if they may not necessary mean to.
AdSensePro Jordan, an official Google AdSense representative laid down the law on this in a Google Groups thread, saying they are not allowed:
I've checked with our policy specialists and placing Google ads in a floating script would be a violation of AdSense policy.Thanks for double-checking before implementing, everyone. Also please feel free to link other users to this thread if they want official confirmation of the policy.
Forum discussion at Google Groups.