Links and Friends
| Facebook |
2,130,000,000 |
| YouTube |
1,500,000,000 |
| Instagram |
800,000,000 |
| Qzone |
563,000,000 |
| Weibo |
376,000,000 |
| Twitter |
330,000,000 |
| Reddit |
330,000,000 |
| Pinterest |
200,000,000 |
| Ask.fm |
160,000,000 |
| Tumblr |
115,000,000 |
| Flickr |
112,000,000 |
| Google+ |
111,000,000 |
| LinkedIn |
106,000,000 |
| VK |
97,000,000 |
| Odnoklassniki |
71,000,000 |
| Meetup |
35,300,000 |
