Read about this farm in my Robert Morris University alumni magazine. Out in Clinton, PA. This farmer offers shares on his farm for growing vegetables. He does most of the work though shareholders from what I understand are welcome to come out and tend their plot. Sounds like an interesting concept and a neat friendly place to visit. If only I wasn't single and cooked more it would sure be worth it. This farmer is organic and has some really neat concepts for getting the most from his land including worm farming and being an educational experience for all.
http://www.sharedacres.com/index.html