Forum Moderators: martinibuster
Up to three ad units may be displayed on each Web site page, but no ad unit shall contain any advertisement in common with any other ad unit. Serving two or more identical ads on a single page constitutes double-serving, which Google does not support.
I don't know how you are supposed to put more than one ad on a page without double serving. I have seen identical ads when there is more than one adsense box. That is, an ad containing an advertisement in common with another ad unit on the same page.
It's damn confusing and i've been with adsense since before the begining.