What the world needs now is more books on underground homes. Perhaps someday I'll write my own. Until that time take a look at some of the links and visit those that sound interesting.
Architext-Excellent environmentally friendly books on architecture from Australia.
Amazon-Worlds largest book store. In Association with.Amazon.com
Extraordinary books- Formerly Cool books-A whole new revamp of their web site. They now deal with unusual ways to use scrap metal, teleportation, light speed and many other interesting subjects. You'll also hear audio on every page.
Perma Earth-Permaculture bookstore and interactive forum.
Taylor Publishers and Elk River Press-Adobe and rammed earth books.
Taunton Press-Besides books and videos you'll find some online info for the hands on person.
Underground Houses-Rob Roys book can be ordered here.
Underground Housing-Web site dedicated to Mike Oehler's $50 and up Underground house. One of those books that helped start the Earth Sheltered movement.