Hitwise has released some interesting stats from August: Of the 56 leading social networking web sites, MySpace.com received 67.54 percent of U.S. visits. Facebook, by comparison, got a mere 20.56 percent of total visits.

Hitwise says that the market shares of U.S. visits to the social networking category overall decreased 2 percent in August from July to account for 6.4 percent of all U.S. visits. Year-over-year, visits to the category decreased 17 percent. The decline would make you believe that the social networking sector is losing steam. My guess is that, with school back in session, the services are going to see resumed growth.