Other boards, to start, assuming they allow it. Here's links to 3 of their recent postings elsewhere.

http://www.getesljobs.com/job_detail.asp?jobid=6548
http://jobs.echinacities.com/ShowJob-19917.html
http://www.jobsabroadbulletin.co.uk/tefl_jobs_index.shtml

Any specifics on why they are evil? While I realize that a teacher may have a bad experience with an otherwise good employer, I would welcome any info on disreputable ones. As most of you already know, libel laws are quite different in China and the UK than here in the US. I would worry about the teachers already in China getting into some hot water. Or is that unfounded?