http://edibleegilsay.wordpress.com/
Permaculture project starting in Egilsay in the Orkneys.
http://www.apartmenttherapy.com/sf/house-tours/four-people-and-a-dog-living-in-180-square-feet-home-away-from-home-tour-123518
Really interesting article about folks who built a cabin (they don't actually live there) for $7k of materials on an island near Vancouver.
http://www.mayapedal.org/
A Guatemalan NGO that build all kinds of whacky devices from bicycles including water pumps, blenders, nut shellers, mill / corn threshers. Incredible stuff.
http://www.backwoodssolar.com/catalog/hydropower.htm
Useful info on micro hydro including a chart showing head and flow to output power. Very handy.
http://www.microhydropower.net/
Lots of info on micro hydro including a book on creating your own systems.