The Computational Chemistry List (CCL) is an e-mail exploder which allows computational chemistry researchers from around the world to exchange information and experiences. You do not need to subscribe (i.e., get CCL messages) to post to CCL, but your e-mail address from which you post needs to be "blessed" by the administrator. It happens when you post your first message to CCL. The list and archives were created to promote contact between researchers involved in chemistry-related computation. This list is not restricted to any particular chemistry software or methodology; anyone is welcome to subscribe.