@Wewereseeds @SociocracyForAll has a lot of material available, much of it CC-licenced. Their page has also links to case studies. Take a look:
http://www.sociocracyforall.org/moose/My own practical experience with sociocracy is not very extensive so far, but the little of it has really felt like a mind-blowingly new way to do things. But basically it's just common sense done systematically, something that's usually pretty much ignored in organizations.