a simple client-server ERP system
FlatNuke is a CMS that makes no use of a DBMS
NAS/File Sharing/PDC server in 5 Minutes
A Murmur-Server Webinterface written in PHP for Mumble
Group sms system
Webkosa is the open source edition of Webcrossing.
Kerberized Messaging Toolkit for Java
Communication tool for technology enthusaists
Electronic Health Records System for ambulatory care
Simple PHP CMS , that supports templates and its very easy to use!