Imagine if a site existed where you could post requests for sustainable building materials like straw bales. Imagine if a site existed where you could tell people about sustainable building materials you have for sale or to give away. What if that site had a special section just for San Antonio?
Of course some people would say such a site would be called Craigslist, but actually the Sustainable Building Materials Exchange is specifically intended to facilitate the exchange of information on green, recycled and sustainable material. They have sections set aside for various cities including San Antonio. A recent post in the Austin section gives information on collecting free glass mulch from the City of Austin.