The first thing, in teaching your kids how to be safe online, is to use common sense. If something doesn't feel right, if someone is instant messaging them that they don't know, they need to know to stop and bring an adult in. The second thing is that you need to define what personal information is. Your kids need to know what should be private and what should be put online. The last piece, it's probably the most important of all, is that they begin to understand what the enter factor means. What that is, once they hit enter on that keyboard, it's out to the world and it never comes back; whether that's a picture they didn't want someone to see, whether that's a phrase that they didn't want someone to see, whatever that information is, it's gone. Your children need to understand the accountability of their digital footprint.