Google has new AdSense guidelines that are almost contradictory to what they used to say about optimizing AdSense ads in the "Tips".

http://adsense.blogspot.com/2008/03/...mizations.html

Thanks John,

Now people are going to have to be even more careful about where they place their ads.

I think thats fair enough, i hate it when webmasters do that anyhow, there should be a different between content and sponsored links.

Woc

Thanks a lot for this tip.now i can place my ads the right way

It´s interesting. I saw many sites using this two placement
to optimize in adsense. Now this placement is in history...