Tencent QQ

腾讯QQ!

Tencent QQ started off as Open ICQ but then changed its name to QQ to avoid infringing on ICQ's name.

Tencent QQ is the most popularly used instant messenger in China and is used almost exclusively within China. It provides advertisement spaces on its instant messenger windows (similar to adverts on MSN).

• http://adver.qq.com