Teens are using Facebook but not Twitter or blogging sites, according to the Pew Internet Project's report. In 2006, 28% of teens and young adult (ages 12-29) were bloggers. By the fall of 2009, the percentage fell to 14% of teens and 15% of young adults. Some teenagers may grow back into blogging as they hit adulthood since blogging tends to focus on life's more meaningful issues, not just about communicating to friends.
Only 8% of teens who go online say they ever Twitter.
Read more at USA Today.