Facebook Is Now the Fourth Largest Site In The World

Worldwide unique visitors (June, 2009).  Source: comScore

   1. Google Sites: 844 million

   2. Microsoft Sites: 691 million

   3. Yahoo! Sites: 581 million

   4. Facebook: 340 million

   5. Wikimedia Foundation sites: 303 million

   6. AOL: 280 million

   7. eBay: 233 million

   8. CBS Interactive: 186 million

   9. Amazon: 183 million

  10. Ask Network: 174 million