Have you heard of Landshare? Its basically a dating agency for people wanting to grow their own food but don't have any land and those that have land on which the first group could grow their food. What a fantastic concept! I have seen so many parcels of empty land begging from someone to use it for something other than a never-ending mowing circuit.
Landshare's website allows you to express an interest in either sharing your land or get connected with someone with some spare land. The website includes some useful tools, such as sample legal agreements ensuring the protection of everyone's rights. There are also case studies showing some successes and nothing more useful than planting guides for different regions in Australia and recipes for produce available from your landshare garden.
Currently there are just over 1100 members and growing rapidly. What an effort for something that was only started four months ago. Have a look at their map indicating locations of people wanting land and people offering land and see whether there is someone you can match up with in your area.