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In-House Social Networks

With a nod to Facebook, large companies now have the virtual equivalent of the water cooler on the Web

Scaling the Social Web

Move over, MySpace. Online players from media giant Viacom to auctioneer eBay are adding networking features for their users

Social Networking Goes Offline

Everybody needs friends to hang out with. Sites like MeetIn.org are helping users connect with like-minded people in the real world

Social Networking with the Elite

Tired of the Web masses? Now you can find your own gated communities on the Net—if they'll let you in

Slide Show: The Most Exclusive Social Networks

As Facebook and MySpace continue to welcome a wider and wider array of members, some people are turning to more discriminating social sites

One Place for Your Many Online Lives

FriendFeed is tearing down the walls between Web haunts such as Facebook, YouTube, Flickr, etc.

Social Networking Goes Niche

MySpace and Friendster's runaway popularity and exposure have helped spawn an array of targeted networking sites. Advertisers are noticing

Social Networks That Break a Sweat

Sports-related sites are quickly drawing new users—and high-caliber advertisers

Where Portals and Social Networks Collide

Facebook and MySpace want to allow users to share data with other sites, but increased competition from Google and Yahoo looms
Slide Show: The Nexus of Niche

Quiz: Test Your Social Media IQ

Ten questions to gauge how much you know about how social media has changed since 2005

Marc Andreessen's New Gamble

In this excerpt from BW columnist Sarah Lacy's book, the co-founder of Netscape backs a social networking site named Ning

Slide Show: Web Entrepreneurs, Vision 2.0

Undeterred by the dot-com bust, these visionaries of Silicon Valley revived the promise of the Web. Here's a look at where each is headed

The Social Media Gender Gap

According to a Rapleaf study, while both sexes still use social networking sites in huge numbers, women are the ones holding down the fort