I posted an ad on craigslist.org in my area offering to construct a raised garden bed. The tools and supplies are basic and cheap dirt can be easily amended. People would buy the materials and I will meet with them, check out their space and available resources, and help them plan a garden space. I'm not charging any money for this service, instead I'm seeking a trade for my efforts. There's several good space planners out there (http://www.smallblueprinter.com/garden/planner.html
) and these can help others realize how much food can be grown in a small space.
Here's a good gardening discussion and article site I stumbled upon http://www.simplegiftsfarm.com/vegetablegardendesign.html