(Fortune Magazine) -- Facebook held no appeal for Peter Lichtenstein. The New Paltz, N.Y., resident had checked out so-called social networking sites before, and he wasn't impressed. ("MySpace," he recalls, "was ridiculous.")A chiropractor and acupuncturist, Lichtenstein was already a member of a few professional web-based user groups. The last thing he needed was another message box to check. Then a buddy posted a link to photos from a trip to Thailand and India on his Facebook page and flatly refused to distribute them any other way. The friend's assumption: Duh - everyone's on Facebook.
And so Lichtenstein, 57, recently became an official member of the Facebook army, 175 million strong and, Facebook says, growing at the astounding rate of about five million new users a week, making it a rare bright spot in a dismal economy. If Facebook were a country, it would have a population nearly as large as Brazil's. It even edges out the U.S. television audience for Super Bowl XLIII, which drew a record-setting 152 million eyeballs.
But these days the folks fervently updating their Facebook pages aren't just tech-savvy kids: The college and post-college crowd the site originally aimed to serve (18- to 24-year-olds) now makes up less than a quarter of users. The newest members - the ones behind Facebook's accelerating growth rate - are more, ahem, mature types like Lichtenstein, who never thought they'd have the time or inclination to overshare on the web. It's just that Facebook has finally started to make their busy lives a little more productive - and a lot more fun.
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