> An important part of it mentioned elsewhere in the thread is the fact that Facebook basically acts as a glorified address book/communications hub - if I want Chris to come to my party or add him to a group conversation about something or share a picture with him, all I need is his name. Not an email, not a phone number, just a name. It's pretty incredible if you think about it. Nothing else comes close.

I thought I read somewhere teens aren't using real names on FB ? What's the general usage ?