Alex correct, sorry Agman1 PM'd me this description:
Hi
CSA = Community Supported Agriculture, in the predominant form a farmer sells shares in an future growing season at a set price, shareholders get an allotment of the harvest as the various crops come in. In our case we have a limited membership that are able to buy various farm products cheese being one of them, we would rather limit the number of members and match production to market, it does essentially the same thing as a conventional CSA, "guaranteeing" an income to the farmer. The CSA products are only a part of what we do on the farm.
Hope this helps.