There might not be too much of a surprise in this top 10 list. However it might heartening for a Facebook fan to see it climb to the fourth position in this latest ranking (ranked by uniques) :

1. Google : 844 million
2. Microsoft : 691 million
3. Yahoo : 581 million
4. Facebook : 340 million
5. Wikimedia : 303 million
6. AOL :280 million
7. eBay : 233 million
8. CBS : 186 million
9. Amazon : 183 million
10. Ask : 174 million

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