See the Full List Data from May 2010


Rank Site Category Unique Visitors (users) Reach Page Views Has Advertising
1  facebook.com Social Networks 540,000,000 34.8% 630,000,000,000 Yes
2  yahoo.com Web Portals 490,000,000 31.5% 70,000,000,000 Yes
3  live.com Search Engines 370,000,000 24.0% 40,000,000,000 Yes
4  wikipedia.org Dictionaries & Encyclopedias 340,000,000 21.7% 7,800,000,000 No
5  msn.com Web Portals 280,000,000 18.0% 11,000,000,000 Yes
6  microsoft.com Software 230,000,000 14.7% 3,400,000,000 Yes
7  baidu.com Web Portals 170,000,000 11.2% 27,000,000,000 Yes
8  qq.com Email & Messaging 130,000,000 8.3% 18,000,000,000 Yes
9  wordpress.com Blogging Resources & Services 120,000,000 7.6% 1,300,000,000 Yes
10  mozilla.com Internet Clients & Browsers 110,000,000 6.8% 1,900,000,000 Yes