Top 15 Most Popular Social Networking Sites of World

1 | Facebook
Quantcast Rank | 2 - Alexa Rank.
Most Popular Social Networking Websites | Updated 3/3/2013 

2 | Twitter

 5 - Quantcast Rank | 9 - Alexa Rank.
Most Popular Social Networking Websites | Updated 3/3/2013

3 | LinkedIn

 23 - Quantcast Rank | 14 - Alexa Rank.
Most Popular Social Networking Websites | Updated 3/3/2013

4 | Pinterest
16 - Quantcast Rank | 36 - Alexa Rank.
Most Popular Social Networking Websites | Updated 3/3/2013

5 | MySpace
 62 - Quantcast Rank | 138 - Alexa Rank.
Most Popular Social Networking Websites | Updated 3/3/2013

6 | Google Plus+
 *NA* - Quantcast Rank | *NA* - Alexa Rank.
Most Popular Social Networking Websites | Updated 3/3/2013

7 | DeviantArt
 74 - Quantcast Rank | 130 - Alexa Rank.
Most Popular Social Networking Websites | Updated 3/3/2013

8 | LiveJournal
203 - Quantcast Rank | 102 - Alexa Rank.
Most Popular Social Networking Websites | Updated 3/3/2013

9 | Tagged
 217 - Quantcast Rank | 282 - Alexa Rank.
Most Popular Social Networking Websites | Updated 3/3/2013

10 | Orkut
 *NA* - Quantcast Rank | 156 - Alexa Rank.
Most Popular Social Networking Websites | Updated 3/3/2013

11 | CafeMom
82 - Quantcast Rank | 1,144 - Alexa Rank.
Most Popular Social Networking Websites | Updated 3/3/2013

12 | Ning
411 - Quantcast Rank | 339 - Alexa Rank.
Most Popular Social Networking Websites | Updated 3/3/2013

13 | Meetup
516 - Quantcast Rank | 509 - Alexa Rank.
Most Popular Social Networking Websites | Updated 3/3/2013

14 | myLife
391 - Quantcast Rank | 1,670 - Alexa Rank.
Most Popular Social Networking Websites | Updated 3/3/2013