Volunteering in Asia forum

Last year I was in Chaing Mai and volunteered at Elephant Nature Park for a week. It was a fantastic experience working with these great animals, all of the elephants have been rescued from some form of abuse or mistreatment.

Now I am looking for another volunteer project for this year. Does anyone have any ideas? I will be on Phuket for one month in April and will then head of on a volunteer program somewhere....

I have heard "where there is not a doctor" , Chiang Rai, is good.
Any suggestions and/or informationgreatly appreciated.