aristotle - 12:52 am on Jun 4, 2011 (gmt 0)

I think the biggest winners are sites like Wikipedia, Amazon, and well-known brands. Also, there are probably millions of sites, especially small sites, that escaped from being hurt but didn't gain much either. For the keywords I watch, which are related to either historical subjects or social issues, there haven't been any significant changes -- All the top sites are still the same as a year ago.