Thanks Blaze.
My daughter lived for a year in Wuxi, a couple hours outside of Shanghia teaching English. It was a great adventure for a 19 year old and I think she plans to go back next year. I wouldn't mind visiting her while she's there and maybe teach a course or two.
I have a good friend who is a university art professor in Nanjing. On a previous trip he took me to see a neighbouring school's photography program...the students, needless to say, put me to shame with their quality, heartfelt work.
Even taking into account the population difference, there are a lot of universities in China. I don't think you'll have a problem finding a place to share your skills.