Introduction to WikiHouse
Video via http://vimeo.com/29254134
"An introduction to WikiHouse.cc. WikiHouse is an open community construction set. Its aim is to make it possible for almost anyone, regardless of their formal skills, to freely download and build structures which are affordable and suited to their needs. There is no single design, or single designer. Houses and components are designed by an open community of designers and users, of which anyone is invited to be a member."