NNTP

mcntp
Freely available implementation of Usenet news via multicast.
http://mcntp.sourceforge.net/

News Overview (NOV) Reference Distribution
Documentation and code detailing the format and use of the NNTP XOVER command's output.
ftp://ftp.informatik.uni-stuttgart.de/pub/net/nov.dist.tar.gz

RFC 0977
The Network News Transfer Protocol (NNTP). B. Kantor, P. Lapsley. February 1986. Obsoleted by RFC 3977.
http://tools.ietf.org/html/rfc977

RFC 1036
Standard for Interchange of USENET Messages. M.R. Horton, R. Adams. December 1987.
http://tools.ietf.org/html/rfc1036

RFC 2980
Common NNTP Extensions. S. Barber. October 2000. Updated by RFC 3977, 4643 and 4644.
http://tools.ietf.org/html/rfc2980

RFC 3501
Specifies the Internet Message Access Protocol (IMAP), which can allow a client to access and manipulate electronic mail messages on a server and which can also be used for reading newsgroups.
http://tools.ietf.org/html/rfc3501

RFC 3977
Network News Transfer Protocol (NNTP). C. Feather. October 2006. Obsoletes RFC 977, updates 2980.
http://tools.ietf.org/html/rfc3977

RFC 4642
Using Transport Layer Security (TLS) with Network News Transfer Protocol (NNTP). K. Murchison, J. Vinocur, C. Newman. October 2006.
http://tools.ietf.org/html/rfc4642

RFC 4643
Network News Transfer Protocol (NNTP) Extension for Authentication. J. Vinocur, K. Murchison. October 2006. Updates RFC 2980.
http://tools.ietf.org/html/rfc4643

RFC 4644
Network News Transfer Protocol (NNTP) Extension for Streaming Feeds. J. Vinocur, K. Murchison. October 2006. Updates RFC 2980.
http://tools.ietf.org/html/rfc4644

RFC 4707
Netnews Administration System (NAS). P. Grau, V. Heinau, H. Schlichting, R. Schuettler. October 2006.
http://tools.ietf.org/html/rfc4707

Tin.org: News Related RFCs and Drafts
A list of RFCs and drafts related to Usenet and e-mail, maintained by the programmers of tin, a newsreader for Unix.
http://www.tin.org/docs.html

Usefor Status Pages
Current drafts and past works of the Usenet Article Format Group. These drafts, if approved, are intended to replace current RFCs.
http://tools.ietf.org/wg/usefor/