Hi Prado,
I have met a few QQ girls and WG from Shanghai on the below site.
BEWARE some photos are fake which I found out the hard way but with the QQ section I am 3/3 with accurate photos. Prices vary from 400rmb one shot service to 1000rmb overnight. There is plenty of outcall options on this site.
http://www.casualencounterschina.com...39637792981418
Another site you may want to try is
http://www.chinadfree.com/list_1_2_7_41__136.html
which also has a lot of information.