alika - 3:46 pm on Mar 2, 2011 (gmt 0)
If I was guessing on the aim of this latest update, I would say Google is regretting the whole AdSense Publisher Network idea and is working toward gradually phasing it out. Otherwise, I see no reason, given Google's resources, for such a wide fallout.
Well, as an Adsense publisher, I sure hope not.
Plus, not all Adsense publishers were affected by this update. Our sites all run Adsense and we remained relatively untouched with this update (keeping fingers crossed).