A January 18, 2007 posting on Worldchanging titled "Multifamily, Affordable, Urban and Green" explores housing that is both sustainable and affordable. http://www.worldchanging.com/archives//005850.html
The posting refers to projects on both the east and west coast.
The ASL has recently acquired the book Worldchanging: A User's Guide for the 21st Century. HC79 E5 W676 2006
It is described as "a compendium of the most innovative solutions, ideas and inventions emerging today for building a sustainable, livable, prosperous future."