Social Networking

Facebook

http://www.facebook.com

Originally started as a social networking site for college & university students, now anyone can join.

MySpace

http://www.myspace.com

Friendster

http://www.friendster.com/

Orkut

http://www.orkut.com

Ning

http://www.ning.com

hi5

http://www.hi5.com/

LinkedIn

http://www.linkedin.com/

Business-oriented social networking site.

Xanga

http://www.xanga.com/