Joining the SCCA is easy, just visit the national SCCA site and fill out a their form.  We are the Southern New York Region, #37.  Some of the benefits of joining include lower entrance fees, an excellent event-related insurance program, and a free subscription to SportsCar Magazine - the official publication of the Sports Car Club of America.  For more information on joining, head to the official SCCA "Join Now" page at the link above.