In case you don't know, CSA stands for community supported agriculture, and is a means of buying produce by "subscribing" to a farm (or other distribution operation--generally not the best kind of CSA). You pay a monthly fee during the growing seasons, and that entitles you to a share of the crop. We live in Waco, Texas, so as far as I know there is only one CSA option. It is through World Hunger Relief, Inc., a "Christian organization committed to the alleviation of hunger around the world". They are involved in training people so that they can teach others around the world how to grow sustainable agriculture. You can find out much more about them on their website. I haven't visited their farm yet, but I definitely plan on it, so you can look forward to that post.
Joining a CSA was not an easy decision because it's far from the cheapest way to buy produce. We decided to give it a shot because we wanted to eat more locally, more plants, and more deliciously, and we hope our CSA will help us to do that.