universetoday - 2:39 am on Jan 21, 2012 (gmt 0)
This is one of those situations where it would be nice to get some coordination from the Adsense advisors pushing you into more and more agressive placement. A quick heads up would be in order.
Anyway, I made changes to my site to make things less top heavy, and it's a big hit on CTR. I'll probably switch to a CPM banner network at this point.