The best social network you've (probably) never heard of is one-five-hundredth the size of Facebook. It has no video chat feature, it doesn't let you check in to your favorite restaurant, and there are no games. The company that runs it has just four employees, one of whom is responsible for programming the entire operation. It has never taken any venture capital money and has no plans to go public. Despite these apparent shortcomings, the site's members absolutely adore it. They consider it a key part of their social lives, and they use it to forge deeper connections with strangers—and share more about themselves—than you're likely to see elsewhere online.

"MySpace is no longer cool. As a matter of fact, its number of users is now one-half the size of rival Facebook. Is this because MySpace is too black for the rest of America? Teenage Internet users may hold the answer. High-schoolers report their use of the social-networking giants along racial lines—MySpace is seen as “black,” while Facebook is “white.”