Those looking for more info on shenzhen, dongguan or changping info can find them here
http://www.u161.com/home_page.php?area=sz
lots of info especially on shenzhen.
changping sauna info can be found here
http://cn.nightlife141.com/
info are updated.
For u161, many hongkie are using that for info. the girls know that they are being advertised in that u161forum so will try to give good or standard service, if they get bad FR , nobody will pick them anymore. there are also lots of girls photo which are pretty up to date so you can scan them at home first and then go there and pick or you can pick the girl at the computer terminal or in person there.