I searched this forum with both the search tool and Google and was surprised to see that no one had mentioned this site:
Lots of free and legal permie downloads. Check it out.
P.S. Yeah if you use Google you get hits, but to individual articles, not the entire site.
P.P.S. Sometimes they claim that an entire eBook is available free (such as this week, Sepp Holzer's book) when in reality it's just a preview. Don't let that take away from the other, FULL goodies they have.
thanks again for starting the thread, i have only found three things so far but on duty of civil disobedience was a great download and im currently listening to gardening without irrigation and will then be watching all the introduction to permaculture lectures:)