Source: Facebook Is Now the Fourth Largest Site In The World
- Google Sites: 844 million
- Microsoft Sites: 691 million
- Yahoo! Sites: 581 million
- Facebook: 340 million
- Wikimedia Foundation sites: 303 million
- AOL: 280 million
- eBay: 233 million
- CBS Interactive: 186 million
- Amazon: 183 million
- Ask Network: 174 million
Related: Twitter passes 44.5 million worldwide: these numbers only count visitors to the Twitter.com site and a substantial number of users – more than half by some counts – get to Twitter via third party apps. That could put unique visitors at potentially 90 million worldwide and 40 million in the U.S.
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