QQ-Most popular IM software in China
In China,most of the people use QQ,as a young people,if you not have QQ account ,you are out.
Download here:http://www.imqq.com/download.shtml (It’s QQ international version)
More information you can read:http://jetorz.yo2.cn/articles/qq-the-most-popular-im-in-china.html