Well actually here's the real statistics:
According to Hitwise (see press release here) - Facebook registered the most visits, although when you combine all google properties google still barely holds the overall lead. Facebook is also searched more often than any other term ... makes one wonder why so many people search the word Facebook?
Does this suggest that 2011 will be the year that Facebook advertising, Facebook fan and business pages, Facebook SEO will actually matter and be more than just a fad? Something like that I think.