GAPworks is the online publication system developed in the GAP project (funded by the DFG). GAPworks provides the necessary infrastructure for online publishing (including a peer-reviewing process).
Hadace Projectpage on SF windrop/eggdrop tcl scripts and (its) web(php)based interfaces
ProcessViewBrowser & ProcessViewServer represent an OpenSource attempt to industrial process visualization. It is based on Qt and is very portable. (Now also available as commercial software)
DNScp is a webbased frontend for the bind (http://www.isc.org/sw/bind/) DNS server.
izidns is a web-mysql-based front-end (based on PowerAdmin) for the bind (http://www.isc.org/sw/bind/) DNS server. Not like the commercial interface 'eazyDNS', izidns fully supports PTR record usage (rDNS) and is released under the GPL :-)
sBNC+ is a German Fork of shroudBNC, which is a modular Internet Relay Chat Proxy written in c++.