AUC (Authenticated User Community) is an intranet system designed for use in an educational organization but is also useful in many other settings. It offers the ability for users to have a uniform web-based interface to discussion forums, e-mail (similar to hotmail, etc.), file management, and a searchable user database. Also, "Interactive Classrooms" provide a means for students and teachers to have a web-based extension to their in-class interaction. The system runs from a C-based monolithic CGI script. MySQL is used for database storage. Also, the web-based mail client supports MIME parts/attachments, IMAP, mbox, and multiple mail folders.
The Auerswald ETS 4308i ISDN PBX Reverse Engineering Project is a completely Open Source client software kit for the Auerswald ETS 4308i ISDN PBX. It aims to implement tools for using the LCR-feature of the PBX effectively, for changing the PBX's configuration, for reading out the phone call accounting, and for using the ISDN-D-channel-protocol of the PBX as input source or isdnlog.
Audiogalaxy's Satellite is a distributed music search agent. It is a small application which does mp3 searching and file transfer and makes a designated directory on your computer searchable by other Satellite users. It features a real-time transaction-based system for file sharing. The Linux version has no user interface, but files are selected via the Web for transfer from other users.