Top 20 Most Popular Social Networking Websites | March 2010

1. facebook.com
722,434,829 - Inbound Links, 122,220,617 - Compete Monthly Visitors, 93,300,000

2. MySpace
345,130,806 - Inbound Links, 55,599,585 - Compete Monthly Visitors, 61,300,000

3. twitter
628,750,806 - Inbound Links, 23,579,044 - Compete Monthly Visitors, 28,000,000

4. LinkedIn.com
29,370,378 - Inbound Links, 11,228,746 - Compete Monthly Visitors, 11,800,000

5. classmates.com
997,666 - Inbound Links, 14,649,224 - Compete Monthly Visitors, 9,600,000

6. Ning.com
13,032,000 - Inbound Links, 5,881,943 - Compete Monthly Visitors, 6,800,000

7. Bebo.com
14,368,423 - Inbound Links, 3,120,062 - Compete Monthly Visitors, 5,400,000

8. HI5.com
8,491,287 - Inbound Links, 2,176,014 - Compete Monthly Visitors, 4,100,000

9. Tagged.com
399,111 - Inbound Links, 3,731,972 - Compete Monthly Visitors, 5,100,000

10. myyearbook.com
921,983 - Inbound Links, 3,025,772 - Compete Monthly Visitors, 3,800,000

11. Multiply.com
16,629,000 - Inbound Links, 1,442,885 - Compete Monthly Visitors, 4,200,000

12. friendster.com
6,896,127 - Inbound Links, 1,454,029 - Compete Monthly Visitors, 2,400,000

13. Meetup
1,764,287 - Inbound Links, 2,533,191 - Compete Monthly Visitors, 2,000,000

14. BlackPlanet
418,032 - Inbound Links, 1,473,081 - Compete Monthly Visitors, 2,200,000

15. Gaia Online
528,287 - Inbound Links, 1,000,070 - Compete Monthly Visitors, 1,500,000

16. Piczo
4,676,287 - Inbound Links, 444,457 - Compete Monthly Visitors, 996,000

17. orkut.com
9,396,000 - Inbound Links, 494,781 - Compete Monthly Visitors, 475,000

18. FotoLog.com
6,382,000 - Inbound Links, 199,838 - Compete Monthly Visitors, 507,000

19. Skyrock.com
8,185,000 - Inbound Links, 154,991 - Compete Monthly Visitors, 217,000

20. badoo.com
228,287 - Inbound Links, 106,885 - Compete Monthly Visitors, 281,000