WHAT'S INSIDE: SOCIAL NETWORKING

Most of us know that Internet communities and social networking sites are popular, but how do blogs, podcasts, wikis and companies like Digg and MySpace work? Learn more in the Social Networking section.
FEATURED: SOCIAL NETWORKING
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Have you ever stumbled upon a cool Web site and shared it with your friends? StumbleUpon.com is an online social network that allows you to do just that with millions of users.

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How Xanga Works

Xanga is a blogging community -- in fact, it says so right on the site's home page. But does Xanga offer more to users than simply a place to post their daily musings?

How BlackPlanet Works

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.

INTERNET: SOCIAL NETWORKING
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