ken_b - 4:58 pm on Nov 30, 2012 (gmt 0)
My last Adsense suggestion improvement was that to put a 336x280 in the top left corner. They helpfully attached a screenshot with the area the add would occupy highlighted: to would completely take the space occupied by my logo and navigation, and a fair chunk of space currently showing content.
Makes ya wonder what some of the "optimization team" at Adsense are smoking.
(I've had both good and terrible advice from them)