The DNEWS News Server is a (USENET) news server. Installing your own local news server software gives you complete control to create your own discussion forums for communication. DNews News Server software provides many features, including ease-of-use, reliability, and scalability.
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.
Newsd is a standalone local NNTP news server for private newsgroup serving on a single server. It is useful for serving private newsgroup(s) to an intranet or the Internet, and can act as a simple mail gateway. However, it does not interface with other news servers and cannot manage distributed news feeds, i.e. Usenet news.