Most of us find out the truth too late. But if you have not yet signed a contract to work in China, I suggest you don't do another thing until you visit and read these links:
http://open.salon.com/blog/china_busine ... _hype_lies
http://www.realscam.com/blogs/seattle/2 ... xpats.html
Reading these articles will earn you about $10,000 more per year working in China. Another teaching colleague turned me on to these links two days before I was going to sign a contract with a shady agent. What great timing!