protest - Open letter on BBS-restrictions to sign

A public register to co-sign a letter of protest against the recent restrictions on BBS's to president Hu Jintao has been opened for signing. New entries are coming in very fast: while I signed up it passed the 1,400 threshold. The sign-in form is not very foreigner-friendly: when you put their too many letters, you are not accepted.
There is also a weblog on the issue, as another blogger(whose url I lost) noted, but does not show more than articles from the traditional media.