Facebook still has the largest user population at 1.16 billion; YouTube is close behind with 1 billion.
China’s giant social media network, Qzone, is running in third place at 712 million total users. It’s twice as large as global social messaging app WhatsApp, and nearly three times as large as Twitter.
IPO-bound Twitter is smaller than many of its less-known rivals, including Tumblr, WhatsApp, and LINE.
Facebook has 95 million users in China (despite the fact that it’s officially blocked), 68 million in India, 42 million in Brazil. Taking these population together, they’re twice as large as Facebook’s U.S. population of 100 million.
Nearly 25% of LinkedIn’s users are in India. In fact, there are more Indians than Americans on LinkedIn and Google+.
Despite being blocked in China, the major social networks still have many millions of Chinese active users who use various stratagems to access these services. Google+ has 100 million users in China, Twitter has 80 million, and YouTube has 60 million.
LinkedIn, the only major social network that is not blocked in China, has over 20 million users
Southeast Asia is off the charts when it comes to mobile social media usage. 82% percent of Thai smartphone owners access social media daily on their phones.