We covered some interesting ground during our hourlong discussion of alternative building techniques at altexpo v1.

If you missed our talk here is some info.

Here are some of the links I have enjoyed. Please send me your ideas. :) 

http://en.wikipedia.org/wiki/Earth_sheltering

http://www.greenbuilder.com/sourcebook/PassiveSol.html 

  Contact him at: Russell@AltExpo.org