When you support a CSA you pay a certain amount of money in advance of the growing season and someone else (usually a small family farm) does all the work for you by growing and harvesting the crops. Once a week for about 16 weeks you pick up your take for that week. We dabbled in this last year (by scamming on some vegies from friends who were out of town and couldn't pick up their csa batch that week), and this year we are in it for real. Great, fresh vegetables, good cause (supporting local farms), and this year, our pickup location is just a short bike ride away. Can't wait.