The Pacific Ocean appeared to protect China from the Twitter craze hitting the US and Europe over the last year.
(Note for Luddite friends: Twitter is a San Francisco micro-blogging phenome that has thousands of people sending 160 character sms messages to each other. It is weird, yes, but also somewhat addictive.)
China has Twitter-ers both in English and in Chinese, but the local specialty of knock-offs has already kicked in. Adam J. Schokora of Edelman Digital speaks in this video about Twitter knock-offs Fanfou, Jiwai and the biggest of them all, Zuosa.
Schokora estimates that while there are only 7,000 Chinese-language Twitter-ers, Zuosa has more than 600,000.