Hitwise says Facebook Most Popular U.S. Site

New data released from analytics service Hitwise today names Facebook the largest website in the U.S. with 7.07% of all U.S. visits. Google is second at 7.03%. Yahoo Mail is third with 3.8% and Yahoo is fourth at 3.67% (if you combined both Yahoo properties, and I’m not sure why they don’t, Yahoo would be first). YouTube (a Google property) is fifst with 2.14%.

This is the first time Hitwise has named Facebook the top site in the U.S. Comscore still ranks Google the top site by reach at 81% of the U.S. population. Facebook, at 53%, is still behind Google, Yahoo and Microsoft sites in the U.S., according to the most recent Comscore data from February 2010.