MySpace- can't/don't go there

Well, for starters, MySpace, as well as Facebook, are blocked in my school district. I don't see them ever getting unblocked, either, as long as there's legal liability. I somewhat understand, but still see some potential for use in my middle school. Our students don't get a lot of computer time at our school but I know I've heard some of them talking about MySpace. I'll have to see if I can get one of them to give up their myspace username. i don't know if they'll be willing or not. I set up a myspace not too long ago; freducational. I had some thought in mind of trying to reach students or to give them an opportunity to communicate in this other venue. I kind of worry, though, about potential problems in interacting with students in myspace, particularly middle schoolers. I was looking, but didn't see an age requirement- I thought there was a minimum age for myspace now? It seems its getting easier to get into trouble in public education now, and some false move or misunderstanding while in myspace seems a perfect opportunity. Are there some other social networking sites for teens? I thought i heard of one recently. But, like they say, one where theres more supervision is not the one teens want to be on.