Twitter is a social network micro-blogging services. The Twitter Clones (micro-blogging services) and it looks like one of the Chinese Twitters are gaining popularity quickly. Here is the most popular Twitter-clone sites in China what I known.
FanFou - FanFou is the biggest Twitter-like site in China. It seems FanFou copied almost everything of Twitter, you can use FanFou to update "what are you doing" in less than 140 characters, it supports updating and receiving notification via Gtalk, MSN, QQ, mobile phone and web, you can follow the updates of your friends, and turn on/off the notification of your friends. It already has a wordpress plugin, maxthon plug and other 3rd party add ons. It also has two Twittervision-like mashups that put Tweets on the 3D globe and a 2D map of China. Xing Wang is Founder and Chief Executive Officer of FanFou.
JiWai.de - JiWai.de is the first Chinese brother of twitter: an online service that enables user to broadcast short messages to your friends or "followers." It also lets you specify which JiWai.de users you want to follow so you can read their messages in one place. Just like twitter, Jiwai supports updating through sms and gtalk. Updating from mobile phones onto jiwai.de, however, compared with Twitter, saves considerable money for Chinese users who want to use twitter-like stuff. To meet the demand of more Chinese users, Jiwai.de also supports updating from some other IMs, including MSN, skype, and QQ. Zhuohuan Li is Founder and Chief Executive Officer of JiWai.de.
TaoTao - Tencent QQ is the most popular IM in China. While Tencent has realized the value of micro-blogging, they launched a stand-alone service called Taotao. Not like FanFou, TaoTao only support updating from QQ and Web. It have no widget support. Since Tencent has the most extensive im user base, and the characteristics of this kind of micro-blogging service also match with profile of QQ's users.
Other Micro-blogging Site in China:
zuosa - http://zuosa.com
ilaodao - http://ilaodao.cn
komoo - http://komoo.cn
byuu - http://byuu.com
wulog - http://wulog.com
fish - http://fish.sh
laigula - http://laigula.com