In this survey, 64% of online adults use social networking sites – that amounts to half the full adult population. Among internet users, social networking sites are most popular with young adults under age 30. As of August 2011, there were no significant differences in use of social networking sites based on gender, race and ethnicity, and household income.

The survey found that 87% of SNS users have a profile on Facebook, 14% have one on MySpace, 11% use Twitter, 10% have a profile on LinkedIn and 13% describe using other social networking services.

When it comes to using SNS, the younger a user is, the more likely she is to log onto the site frequently.