As usual (and will likely stay usual) everyone is totally missing what Google’s Panda update was all about.
Here’s the deal: Panda was targeting entire sites, not just pages, that have a history of ranking pages that not user friendly, ugly, redundant, or all together useless. Did some good sties suffer? Yes. But mostly it was a great update from a search users standpoint.
For more on this you really need to head over to SEOmoz here: http://www.seomoz.org/blog/beat-google-panda