PHPnewsGroups is a Usenet news client written in PHP4. It is completely Web-based, and the interface is very easy to use and does not require any particular Usenet knowledge. Just a few configuration files to edit and that's it. You can easily access and search all newsgroups with binary content.
DBOX is a free communication package for ISPs. It supports a large number of message formats such as RFC/UUCP, ZConnect, Janus/Janus2, Alphabox, and GSbox. It is designed for large installations and includes a WWW package with an email/HTML gateway, an HTML online shop, support for POP3/IMAP4, and personal homepages with HTTP/FTP upload.
NewsOutlook is a tool that aims to improve the signal to noise ratio of Usenet newsgroups and syndication feeds (RSS and Atom) by selecting only useful news. It consists of two modules: a Web-based configuration front-end and a server daemon. It uses the HTML::Mason framework and stores data in a MySQL database.