Check links in web documents or full websites
OpenXP 5 - a multi-protocol offline mail and news reader
A free Usenet server with SQL backend and RBAC.
The Binary Usenet Tool
Simple Network Time Protocol in Ada
UNISoN is a NNTP client that can analyse messages to save to Pajek
Efficient Usenet Downloader
A simple news server (NNTP) for Linux
Usenet (nntp) indexing toolkit
nntp reader and download
Browsing web news without a browser
Statistics for Usenet News and Fidonet echomail
NNTP2NNTP is a simple and pretty fast NNTP proxy server
NNTP Usenet Client supporting yEnc binaries, multi threaded downloads
Webkosa is the open source edition of Webcrossing.