Squat.net

Sleeping In Airports

Brian Campbell's Housebikes - Intriguing idea , but I can't find any more information about these.

Find Hostels worldwide - Hostel Planet , Hostels.com , The Hostel Handbook

The Bus Barn

The Hobo Hideout - Worldwide directory of cheap accomodations. Not much here yet but it's being worked on.

Berm earth sheltered home information page

Soul Renaissance  - Sun dried earth construction

The World of the Microhouse  - Mother Jones article

Straw House Blog

Geodesic Domes

The Freedom of Yurts

Article on Alternative Housing ideas

Hike-in Bike-in Campsites - Various parks around the U.S. have these, often costing as little as $1 to $4 a night. I've yet to find a comprehensive list of all the parks that offer this, but the link goes to an example of one in Napa that is only $1 a night.

The Clancy Cardboard House

Dura-Kit

Origami Dome Tent

The Cob Builder's Handbook

Tensegrity Shade Structures

Temporary Desert Structures

Article on various "couchsurfing" sites


picture from Angus McIntyre photo gallery