After reading the forums here, I though that some of you might be interested in this two part article about protecting kids from cyberbullies and predators on social networking sites. They are about 6 months old but I think that they are still very relevant.

"Getting to Know You" Online: Parenting in the Age of Social Networking – Part 1
"Getting to Know You" Online: Parenting in the Age of Social Networking – Part 2