Redesigning Civilization. Introduction to Permaculture - 40 hours of Free video lectures. Permaculture means 'permanent culture,' (or 'permanent agriculture') and ...'is the conscious design and maintenance of cultivated ecosystems that have the diversity, stability, and resilience of a natural ecosystem.' (Bill Mollison)
The Center for Pattern Literacy – Toby Hemenway. Patriciaallison.net: Permaculture Training with Patricia Allison.