Adults and social networks, by Pew Internet

Adults and social networks

"The percentage of adults who use online social networks has grown from 8% of internet users in February 2005 to 16% in August 2006 to 37% in November 2008. On a typical day in 2009, just over one-quarter (27%) of adult internet users visited a social networking site"

"Among adult profile owners, Facebook is currently the social network of choice; 73% of adult profile owners now maintain a profile on Facebook, 48% of all adult profile owners have a profile on MySpace and 14% of profile owners use LinkedIn as of September 2009"