Add placement heat map info. For Blogs: For Forums:
In the past I've asked Adsense to generate a separate "heat map" for the link units. I think it might be different. (There's been no response). I have found link units can help monetize a web page's footer, obviously a place people might be exiting a website anyway.
Google's code for the page has some problems! The heat map is only on the non-secure server.
Add placement heat map info.