Straw Bale
Although probably not conducive to a humid damp climate like that found in
Virginia, nevertheless a very interesting way to build.
What is it? - Toolbase.org StrawBale.com
Wikipedia.org
Rammed Earth
Again, another interesting technology that is more prevalent in the
southwest, but there's no real reason it couldn't be used in the southeast.
Very labor intensive. What is
it? - Wikipedia.org
Toolbase.org