rfc1945 - HTTP/1.0
rfc2068 - HTTP/1.1 (mostly obsoleted original specification)
rfc2109 - HTTP State Management Mechanism
rfc2145 - Use and Interpretation of HTTP Version Numbers
rfc2324 - Hyper Text Coffee Pot Control Protocol (HTCPCP/1.0)
rfc2388 - Returning Values from Forms:  multipart/form-data
rfc2518 - HTTP Extensions for Distributed Authoring -- WEBDAV
rfc2616 - HTTP/1.1 (revised) [plus errata]
rfc2617 - HTTP Authentication: Basic and Digest Access Authentication [plus errata]
rfc2817 - Upgrading to TLS Within HTTP/1.1
rfc2818 - HTTP Over TLS
rfc2965 - HTTP State Management Mechanism (allegedly obsoletes 2109)
rfc3986 - Uniform Resource Identifiers (URI): Generic Syntax
