Social Networks Attract Nearly Half Of All Web Users
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| ...Blogger, owned by Google Inc., was second with 18.5 million visitors
| and an 80 percent growth rate.
| Classmates Online grew 10 percent to 12.9 million visitors, and YouTube
| and Microsoft's MSN Groups, which saw a 14 percent drop in visitors,
| rounded out the top five with 12.5 million and 10.6 million, respectively.