Eco- market

I noticed last weekend when I was driving around with kiddos that there is an eco-market or green market kinda thing set up near el-centro, close to the area where the big buses park. Does anyone know who is running this? I am interested in selling some wares. Thanks so much!

You are referring to the Eco-Tianguis "Sanka". See their contact info on their Facebook page.
http://www.facebook.com/eco.tianguissanka/