In Question2Answer, how to enable Sina Weibo and Tencent QQ account log in?
Use the Social Plugin for Sina Weibo and Tencent QQ (in Chinese): http://q2achina.sinaapp.com/blog/archives/22/
The websites to apply for the app:
Weibo: http://open.weibo.com/
QQ: http://connect.qq.com/