Earth Building Takes New Shapes, an article from the Home Energy Magazine Online May/June 1999, describes the current technologies and benefits of earth building.
carpetarea.com
Terra Cruda/Raw Earth
www.terracruda.com has some interesting examples of modern earth architecture. The site is only in Italian, but you can translate at babelfish.
Adobe Resource
Quentin Wilson is the “The Adobe Building Resource of Northern New Mexico”.