My Space, Facebook

I already had a page on MySpace and have used MySpace to keep up with my niece in California, so I decided to join Facebook and see what the difference is. I viewed the Common Craft video-I like those! Then I registered for Facebook, exported my address book so Facebook could search for friends. I asked 4 people to be my friend. I filled out my profile and added a photo. Then I joined the Library 2.0 interest group. I can see where Facebook and MySpace could be fun, but don't see using social networking sites available in public or school libraries. I guess I'm still a bit behind the curve!