It was this podcast that introduced me to Scott's work. If you like this sort of anthropology of ag stuff, I definitely recommend watching James C. Scott talks online, & reading his works. He has some really innovative ideas about peoples who historically -& currently- engage in polycultural horticulture, as opposed to monoculture-plow-grain agriculture, as well as the relationships between these 2 types of societies.
This is crucial. When one listens to Bill Mollison's PDC's, one realizes that he is constantly citing the practices of indigenous horticuluralists (eg. pre-Western contact influenced horticulture in Hawai'i) as historical & currently existing examples of permaculture. These citations need to be carried forward in every PDC, not only giving credit where credit is due, but also inspiring folks as to what is possible with our relationships with the plant, animal, & microbial worlds.
Many of the good ones are behind a paywall, I think it should be mandatory for everyone to watch at least one of Bill Mollison's PDC's. Apart from useful information, he rambles on with weird anecdotes, has a great sense of humour and likes to troll people.
If something used to be on Youtube, its worth looking for it on Vimeo.
Geoff Lawton offers a free permaculture course through online videos.
http://start.geofflawtononline.com/permaculturecircle/ It requires a sign-up, but I think it's an excellent 21st century approach to teaching permaculture to a generation that has been raised with more video than text.
It's been a valuable refresher for me, the animations are especially helpful for clearly expressing abstract concepts and the cadence of Geoff's voice is a much needed pyschospiritual valium.
Examine your lifestyle, multiply it by 7.7 billion other ego-monkeys with similar desires and query whether that global impact is conscionable.