It depends on your concern. If you feel that there is something there that seriously jeopardizes your friend's son than you should do something. If you're able, it might be best to talk with the young person directly rather than "turn him in" to his parents. But you have to do what you think it best.

Just try to help the parent understand not to overreact. Usually the best strategy is to get the child to remove harmful or dangerous material or stop doing whatever they are doing that's dangerous rather than banning them from MySpace.

I am concerned about my friend's son's my space account.
I want to keep the trust but should I say something to him and/his parents?