Tencent wechat pioneered the facebook messaging services. Is it a fair inspiration/ facebook copying? 

               innovation going on in Wechat.

Musically(a tech APP): completely built in china. You start to see chinese teams become more innovative and doing things for global market.

Twitter: just hired a new head of China. Controversive because of its potential type that chinese government is unclear. (in case of Facebook did come into China and twitter can start to do sth as well)

Facebook: trying hard to impressed the chinese government.

Facebook, twitter, snapchat, instagram...may come into chinese market.