I split this off from the hugelkultur herb spiral thread, it was going a little astray, but it deserves its own topic.
There is also the full course from the NC State that was referenced before...I'm still going through it, kind of like an audit I guess. It's free, and it's the entire course. The professor who teaches it has his yard featured on the cover of Gaia's Garden.
Here's the link again:
http://goo.gl/3Q4Kr
