Social networking is popular -- there's no doubt about it. And motorsports has plenty of fans, too. But is there a social network where race fans can go to discuss the sport they're so passionate about?
BlackPlanet.com was launched amid a crowded sea of overhyped Internet startups, but it didn't take long to establish itself as the premier social networking site for African-Americans. You can even drop the President a line if you like.
A social networking site originally created for Harvard students, Facebook is now open for anyone to join -- and it currently has 750 million active users. What features have made it such a big success?
One of Web's most explosive phenomena, MySpace grew to 54 million profiles seemingly overnight. Find out what MySpace really is, how it blew past the competition and why Rupert Murdoch thought it was worth $580 million.