One problem with AdSense, that some blog owners have reported, is that AdSense ads are not permitted on pages with very little AdSense relevant content. Unfortunately for some blog owners, the responsibility for preventing this is left to the blog owner. Blogs with static pages, and AdSense gadgets in the sidebar, are a problem here. Static pages with little blog relevant content - such as label indexes , expanded owner profiles, special gadgets like Followers displays - cause problems with the AdSense ad classifier - and can cause blogs to lose ads.
What Blogger won't tell you