Recently, 4chan had a thread about Yakui, the insane junkie maid-tan of 2chan.
This page: http://shii.org/maids/index.html covers most of the maid-tans from 2chan. Yakui is the one standing in the centre of the lineup at the top of the page. Site has deep wee-a-booness about it, and also links to some nsfw material, so be advised.