At THINK.MTV.COM, teens learn about issues that are affecting the world through videos, songs, and PSAs -- frequently posted by MTV VJs and music celebs -- about education, immigration, and other topics. The site also offers ways for teens to get involved (online petitions, a volunteer gig finder, and voter registration link) and ways to connect with one another. User profiles can include photos and list issues and organizations members support.
Ultimately, Think.MTV.com's upbeat, encouraging tone is inspiring. Even if you don't dig the music channel's programming picks, it's hard to argue with its Internet focus -- empowering teens to spend their online time tackling world issues instead of IMing friends about the latest Britney fashion blunder.
Online interaction: Registered users can start discussions and write blogs oriented around social responsibility and world affairs.