It is great that so many China-based correspondents are using Twitter. These journalists are generally excellent sources of information about China, especially the increasing numbers who use it to more than just post links to their own stories.
I have created a Twitter list called, creatively, Chinajournalists. So far I have 42 people on the list. For the most part they report for English-language media but that is not a requirement. If I am missing any please let me know, either in the comments or @niubi, and I will add them.
You can follow the list at http://twitter.com/#list/niubi/chinajournalists