"Nine- to 17-year-olds report spending almost as much time using social networking services and Web sites as they spend watching television. Among teens, that amounts to about 9 hours a week on social networking activities, compared to about 10 hours a week watching TV...
Overall, an astonishing 96 percent of students with online access report that they have ever used any social networking technologies, such as chatting, text messaging, blogging and visiting online communities, such as Facebook, MySpace and services designed specifically for younger children, such as Webkins and the chat sections of Nick.com. Eighty-one percent say they have visited a social networking Web site within the past three months and 71 percent say they use social networking tools at least weekly."
Students & Social Media
From the National School Board Association's report, CREATING & CONNECTING//Research and Guidelines on Online Social — and Educational — Networking