In recently released date from Hitwise, they have named Facebook as the most visited website in the U.S. with over 7% of all website visits. Google is very close behind at second, with Yahoo Mail and Yahoo following respectively.
This is the first time Facebook has been named as the top site by Hitwise and Comscore still has Google leading and Facebook following behind in their latest data. Either way, Facebook is closing the gap on Google.

via TechCrunch