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Snapchat, Inc.

Troy Wolverton: At what age should kids start social networking?

With my eldest kid entering middle school this fall, he and my wife and I were anxious about a lot of things. A new school. Unfamiliar faces. Changing classes. Letter grades. The PE locker room. Advanced math. The specters of gangs, drugs and bullying. What wasn't on my mind at all was social media. It is now. At an orientation session before school started, one of the assistant principals urged parents to get on top of their kids use of social networking. He didn't go into the specifics of the problems he'd seen. But he noted that what happens online can affect children's school lives, and it's much harder for school administrators to moderate. To get an idea of...