Which would be the best social-networking site in your opinion which does not include a lot of dating?

I hate it when i get those stupid love messages so which site could you rate as a much safer one.Actually all are the same but I wanted to know a cool site for friends and all

Twitter will be better.. even celebrities are there !

Check this :

http://www.hellboundbloggers.com/best-posts/celebrities-in-twitter

Exhibitor Testimonials from the Internet Dating Conference and Social Networking Conference