David Jackson's Internet Stock Blog reports that according to Nielson/NetRatings the top 10 social networking sites collectively grew 47% since last year ? a climb from 46.8 million uniques in April 2005 to 68.8 million in April 2006. The data includes blogs ? such as Google?s Blogger platform--but News Corp?s (NWS) MySpace tops the list.

Susan sez: Did you realize MySpace is close behind Yahoo in page views? Zowie.