Compare SSL Certificates: Compares Certificate Authority products and prices. Provides help for generating signing requests, help installing signed certificates, and answers to frequently asked questions.
Dan Kegel's Web Hostel: Information on SSL acceleration hardware and collection of links to sites for APIs that implement SSL/TLS.
Netscape Certificate Specifications: The documents referenced below describe the certificate issuing, key generation, and certificates extensions supported in various Netscape products. (Netscape)
SSL Certificates Guide: A free SSL certificate guide to web and ecommerce security, a comparison chart of SSL vendors and what they offer.
Transport Layer Security Charter: The IETF Working Group is responsible for developing the TLS Protocol which is intended to replace SSL.