Facebook Learns from Its Fumble

After an outcry over a news feed feature, the site is tightening privacy protectionsand promises to do market testing next time

Mark Zuckerberg is a reluctant poster child for the phenomenon sweeping the Internet known loosely as Web 2.0. Partly that's because he's shy. And partly because he's more interested in building cool new features for Facebook, the social networking site he started two-and-a-half years ago in his Harvard dorm room, than he is in riding the speaking circuit. His take on Facebook is that, unlike many social networking and user-generated content sites out there, it's not about merely helping people find dates or network or keep in touch. Instead, it's about "helping people understand the world around them," he says.

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