As I mention in my About page, Tom Sine has influenced me quite a bit. I met him at Urbana in 1996, and saw him the following year at Messiah College, where I also got to take part in one of his creativity workshops.
I’d to introduce you to his website, Mustard Seed Associates. There you can learn about their community living house, the Mustard Seed House, as well as his new book, The New Conspirators: Creating the Future One Mustard Seed at a Time. If you haven’t read any of his books, I highly recommend you do so when you get a chance.