GNU EPrints is a system for creating large archives of documents, with a searchable database of metadata. It's main target is for scholarly material. The primary site for EPrints is; http://software.eprints.org/
NMDC Hub Server
Verlihub is a NMDC hub server that runs on all operating systems. It is written in C++ and has many rich plugins including Lua, Python and Perl.
VistaView Pro is a sharable web-based Information Management System for Email, Appointments, contacts, letters, documents, tasks... developed in Perl & using a MYSQL database. It is currently 4 Windows/Linux. Aim to provide free, professional PIM for all
WebAPP: Web Automated Perl Portal is easily installed on virtually any UNIX-based server which is provided by all modern hosting plans. WebAPP is the most fully-featured, versatile, free and open-source, flat-file Perl portal script available today! ----
Web-Frontend for various Transfer-Clients. 1.0-beta supports BitTornado, Transmission, BitTorrent (mainline), Azureus, nzbperl and wget.