To join a co-op, you need to contact the coordinator. There is a list of co-ops on our web site at http://www.breadbeckers.com/coop.htm Simply click on one of the links there and you will be prompted to send a blank e-mail. That e-mail will be answered with the contact info for the co-op.
OR, if you are interested in one of the co-ops that has a forum here, open the forum by clicking on its name, click on the name of the moderator near the top of the window that opens up, and send an e-mail.