Permaculture Design
wiki: http://en.wikibooks.org/wiki/Permaculture_Design
another wiki: http://permaground.wikispaces.com/
another wiki, lots of solar links: http://www.appropedia.org/Composting_greenhouse_provides_hot_water_%28original%29
Seed library map: http://justmap.it/map.do?mapId=APkhyt2Biuaz
comfrey gardening: http://www.naturalnews.com/032325_comfrey_gardening.html
MetaHack: A how-to on a wiki online. #knowaboutit