Officials are attempting to make these tasks more manageable by requiring that users of the most prominent microblog service, Sina Weibo, register using their real name and identity-card number by March 16th.

ECONOMIST: The power of microblogs

The other leading microblog, called Tencent Weibo, now also requires new users to register with their real name.

ECONOMIST: The power of microblogs

Anonymous members often publicise their activities on Twitter, but the microblog's limit of 140 characters means they redirect users to much longer "pastes" elsewhere to share details of hijacked emails, passwords and other information.

BBC: Anonymous creates Pastebin rival to combat 'censorship'