Pew Internet & American Life Project
Two-thirds of online adults (66%) use social media platforms such as Facebook, Twitter, MySpace or LinkedIn.
These Internet users say that connections with family members and friends (both new and old) are a primary consideration in their adoption of social media tools. Roughly two-thirds of social media users say that staying in touch with current friends and family members is a major reason they use these sites, while half say that connecting with old friends they’ve lost touch with is a major reason behind their use of these technologies.
Other factors play a much smaller role: 14% of users say that connecting around a shared hobby or interest is a major reason they use social media and 9% say that making new friends is equally important. Reading comments by public figures and finding potential romantic partners are cited as major factors by just 5% and 3% of social media users, respectively.
See the full report for more details, including differences among age and ethnic groups when it comes to what they value most in social media.