Adsense Heat Map for Blogs and Forums
Adsense Help Center has released a new heat map to blogtimize or optimize Adsense on your blog.
See sample heat map below:
Remember that maximum number of Adsense ad blocks per page is 3 for content ads, 1 link ad unit, and 1 ad for search. Bear in mind that your blog’s layout will ultimately dictate how ads should be positioned.
See explanation here. Forums are inherently harder to monetize with Adsense because users have already gone accustomed to the ads and eventually become ad-blind so it’s good to change ad placements once in a while.
Note: Click on thumbnails to see larger version.