Michael Reynolds has been doing some great things with his Earthship Movement. One example is that after the earthquake hit Haiti, he and his colleagues went to help the people by building environmentally sound, affordable, disaster-proof dwellings. With the experience of working in Haiti they have come up with a brilliant design for one of the ways they can really help Haitians — being that it has been over a year now and still over a million people are living in tents and malaria and cholera are now prevalent. This design is loosely based on permaculture principles as all Earthship Biotecture is.
You can keep up with Earthship’s progress at their YouTube channel which is updated often with videos of ongoing projects.