Bulletin Board News Server is a (relatively) quick NNTP interface for vBulletin. It reads directly from the MySQL DB and is therefore independent of the Web frontend. It doesn't alter read counters, but "forbidden names", name size limitations, user authentication, and anonymous posting (through a "usenet" user) are implemented. Registered users (either in the vboard or through a proprietary pw hash in the config file) can see the email addresses of others, as far as the owners permit it.
The NukePost script automates the process of removing multiple Usenet posts from Google's message archive, saving you the trouble of continually reloading and resubmitting Google's removal page. It requires an active Google utility account and the Message-IDs of the posts you want to remove.
With NewsGrabber you can search newsgroups for subjects (regular expressions are allowed), monitor articles in newsgroups, or just fetch an article by message id. It is configured by an XML file, and you can specify as many regular expressions per newsgroup as you like. You can also add a number of news servers.
NNTPSwitch is a Linux NNTP content router. It's aimed at high-performance news servers for ISPs and Usenet resellers. NNTPSwitch forwards client connections to multiple backend servers to get its actual articles. Depending on the backend server type, all NNTP commands and extensions are supported, including (remote) authorization. Accounting is supported in a user-friendly matter for data limited NNTP connections.