I wish I had taken a screenshot, but I just noticed a 728x90 leaderboard Google AdSense ad on one of these pages. And instead of the usual text "Ads by Google" it said "Ads by Goooooooogle" ;) Looks like someone's playin' around ;)

Update: I just found this again in a skyscraper ad. This time I took a screenie. (sorry for double posting - don't follow the admin's example)

Maybe they're trying to have a little SEO on mistyped google urls :P.

LOL :) Maybe this is some preview of an AdSense improvement? ;) Hopefully something bigger than extra o's