Hitwise: MySpace Tops, But Social Network Site Visits Down

MySpace.com received 67.54% of the market share of U.S. visits in August 2008 among a custom category of 56 of the leading social networking Web sites, according to Hitwise. But the market share of U.S. visits to the social networking custom category decreased 2% in August 2008 to 6.40% of all U.S. visits compared to July 2008. Visits to the category decreased 17% year-over-year.

Among the top 10 social networking Web sites, Facebook ranked second by market share of U.S. visits with 20.56%, followed by myYearbook, which received 1.65 %. MyYearbook experienced the largest gain in market share in August 2008 among the top five visited Web sites, increasing 256% compared to August 2007. Tagged and Facebook followed, increasing 147% and 50%, respectively.

More here