• Tech Web, Tuesday, May 16, 2006 10:18 AM

New research from Nielsen/NetRatings reports that roughly half of all Web users visited a social networking site in April, the highest output yet, as the social networking phenomenon continues its meteoric rise to mainstream media consumption. Year over year, the top 10 sites grew 47 percent in the U.S. to 68.8 million unique users, reaching 45 percent of active Web users. MySpace, of course, greatly inflated those numbers, topping the list with 38.4 million unique users and a--get this--367 percent growth rate. Google's Blogger came second with 18.5 million uniques and a not-so-bad 80 percent growth rate. Classmates Online came third with 12.9 million uniques, and YouTube and Microsoft's MSN Groups rounded out the top five with 12.5 million and 10.6 million uniques, respectively.

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