The free online document linked below has several interesting low tech/low cost stove designs from around the world, including some commercial scale stoves for feeding lots of people.
earth
Round Earthbag Village Library
Here is the round earthbag village library I have almost completed. I have seen your inspiring works with earthbags and am happy to inform you that I am also into green building here in Kenya. I have done a demo house using earthbags and will be going for the next level of building as eco friendly training school using this method. We would want to include off grid power eventually but that is for the future.
DinDang Natural Building Center
“The DinDang Natural Building and Living Center aims to promote the natural and traditional techniques of building and the lifestyle that goes with it in the Phato area in southern Thailand.
Lime Stabilized Adobe Bricks
“In response to a recent post on the blog, I searched for Earthen Buildings East Africa to look for photographs and came across the following link:
http://digitalcommons.calpoly.edu/cgi/viewcontent.cgi?article=1187&context=theses
[large file warning to those with slow Internet connections]
You may judge it worth publishing on your site as it, for a thesis, examines the properties of building bricks made from various materials for low-cost building in Africa but could be used anywhere as demonstrated by tests in central Tanzania with parallel results from California.
Cob Kitchen
This natural building kitchen includes a barrel oven surrounded in cob to help hold the heat. Note the tiles embedded in the cob and other nice touches throughout the kitchen.
Report on Compressed Earth Blocks
“The following study was done to test the feasibility of interlocking soil/cement compressed blocks in residential construction in North America. The study collected data on compressive strength of the blocks as well as observations on how they can be used.