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A new survey of the social networking habits of teenagers says that the majority have online experiences that help them feel good about themselves or make them feel closer to someone else on the network. 93 percent of teen social media users now have a Facebook account.

"Still, a substantial number of teens report specific negative outcomes from experiences on social network sites," warns Teens, Kindness, and Cruelty on Social Network Sites, produced by the Pew Internet and American Life Project, the Family Online Safety Institute, and Cable in the Classroom.

That's putting it mildly.