Top 15 Most Popular Social Networking Sites, November 2014 are following.

Rank & Estimated Unique Monthly Visitors

1 Facebook 900M

2 Twitter 310M

3 LinkedIn 255M

4 Pinterest 250M

5 Google Plus+ 120M

6 Tumblr 110M

7 Instagram 100M

8 VK 80M

9 Flickr 65M

10 Vine 42M

11 Meetup 40M

12 Tagged 38M

13 Ask.fm 37M

14 MeetMe 15.5M

15 ClassMates 15M

Updated by the average of each website's Alexa Global Traffic Rank and U.S. Traffic Rank

Source: ebizmba