A few more, if you're interested..
*http://code.nx3d.org/bbs/
*http://i.9.ai/kareha/
*http://dave.69.mu/dis/
*http://512chan.tk/
*http://4ch.irc.su/bbs/4/ (A bit messy :P)
*http://tinychan.org/
*http://bbs.internetrelaycats.net/
Should I give up on this? You guys can post links, too :3