3 links
Allen & Pats Earthship
gradyallengooch.com
Information about Earthship construction, alternative housing, rammed earth, old worn out tires, aluminum cans, solar energy, renewables, recycling, sustainablity, and clean living…
Earthship Biotecture
earthship.org
Resource information, news, seminar schedules, members-only knowledge-base, discussion forums, and construction information.
Ekotecture
geocities.com
Ekotecture is the work of architect Lee Porter Butler that promotes constructing completely self-sustaining buildings using a gravity geo-thermal envelope.