I posted a bulletin on MySpace telling people to join twifans.com and got at least one person (BittenByTwilight) to join. If you try to promote twifans.com, tell me about it here. =)
I titled the bullentin "ALL TWILIGHT FANS" and inside it said "If you're a fan of Twilight you should join this new site: www.twifans.com
It's really fun.
It's like MySpace, but exclusively for Twilight fans! =)"
So you can just copy what I said or come up with your own thing. Let's spread the word about this place!