Most Popular Social Networking Sites

Name the most popular social networking sites by the number of registered users.
According to September 2014
Quiz by relessness
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Last updated: September 10, 2014
First submittedJanuary 29, 2013
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Users
Name
1,600,000,000
Google+
1,280,000,000
Facebook
645,750,000
Twitter
480,000,000
Qzone
300,000,000
Sina Weibo
268,000,000
Habbo
249,410,000
Vkontakte
200,000,000
LinkedIn
160,000,000
Renren
150,000,000
Instagram
Users
Name
117,000,000
Bebo
100,000,000
Tagged
100,000,000
Orkut
95,000,000
Netlog
90,000,000
Friendster
80,000,000
hi5
63,000,000
Flixster
51,000,000
MyLife
50,000,000
Classmates.com
50,000,000
Sonico.com
+1
Level 55
Sep 10, 2014
I have heard of a grand total of six of these. How are Instagram, Pinterest, and Tumblr not on here? Very surprising.
+1
Level 67
Oct 23, 2018
I suspect a lot of these are popular in different parts of the world. Also, some of them I think are things that never really blew up on their own, but got some artificially inflated numbers through trickery. For example, there's no way in hell 1.6 billion people use Google+. Google just integrates YouTube and Gmail so that if you have one of those, you have a Google+ account even if you've never once looked at it. And an old phone of mine came with Orkut installed as non-removable bloatware. I'm sure a few of the others have done something similar.
+1
Level 28
Mar 8, 2015
How come Flickr's not on here?
+1
Level 28
Jun 16, 2015
I thought I would see Snapchat
+1
Level 67
Oct 23, 2018
There is no way in hell Google+ is the most popular. If they have that many registered users, that's only because they've integrated YouTube and Gmail accounts. The actual number of people that use Google+ is probably less than 1/10 of that number.