Lunabyte Systems Portal
LSP: Enigma is an easy to use portal package for your website.
Developer: Lunabyte Systems Portal
License: GNU General Public License (GPL)
Operating System: OS Independent (Written in an interpreted language)
Metadot Portal Server is a point-and-click website builder software for building powerful websites just with the click of a mouse.
Developer: Daniel Guermeur
License: GNU General Public License (GPL)
Operating System: Windows NT/2000, FreeBSD, Linux
MemHT Portal is a Free Multilingual Content Management System.
Developer: Miltenovik Manojlo
License: GNU General Public License (GPL)
Operating System: ALL
iPortal is a complete ready-to-run Web portal system (portal).
Developer: Drew Gauderman
License: GNU General Public License (GPL)
Operating System: Windows
Portal system with membership features like forums, profiles, and messaging along with links, downloads, polls, and a number of other features.
Developer: Jos Brown
License: GNU General Public License (GPL)
Operating System: Unix, Linux, Win
Pre Podcast Portal is highly effective script, developed in php to provide complete solution for podcasting.
Developer: PreProjects.com
License: GNU General Public License (GPL)
Operating System: All
iJoomla News Portal turns your existing sections, categories and articles into a live news portal.
Developer: Merav Knafo
License: GNU General Public License (GPL)
Operating System: Not Available
A very simple Content Management Systems licensed under lgpl (opensource) developed with Php 5.
Developer: Edward C. (R. Aidy)
License: GNU Lesser General Public License (LGPL)
Operating System: OpSys-All
i Net Video Community portal is the ultimate solution for starting your video sharing and uploading community just like the big boys such as Youtube, Daily Motion and Myspace Videos.
Developer: Birundha
License: GNU General Public License (GPL)
Operating System: Linux, Windows & UNIX
MaxWebPortal is a web portal and online community system which includes advanced features such as web-based administration, poll, private/public events calendar, user customizable color themes, classifieds, user control panel, online pager, link, file, article, picture manager and etc.
Developer: http://www.maxwebportal....
License: Freeware
Operating System: windows
Eazy portal is the best solution allowing you to maintain your online community.
Developer: Vladimir
License: Freeware
Operating System: Linux
MemHT Portal is a Content Management System developed in PHP that permit with a simple graphic interface, the online management of a complete and advanced portal, without the necessity of hosting locally the needed files for his functionality and especially without knowing any programming language.
Developer: Memht
License: Freeware
Operating System: linux
Liferay Enterprise Portal is a Java/J2EE portal system that provides personalization (like Yahoo.
Developer: Liferay Developers
License: MIT/X Consortium License
Operating System: UNIX, Win NT, XP, Linux
YaWPS (Yet another Web Portal System) is a hybrid between a content management system and a web portal for medium- or small-sized Internet- or Intranetsites.
Developer: Adrian Heissler
License: GNU General Public License (GPL)
Operating System: UNIX platforms as well as on Windows platforms.
PHP Nuke is the most popular Web Portal Software.
Developer: Kurt
License: GNU General Public License (GPL)
Operating System: Windows, Linux,
MaxWebPortal is a web portal and online community system which includes advanced features such as web-based administration, poll, private/public events calendar, user customizable color themes, classifieds, user control panel, online pager, link, file, article, picture managers and much more.
Developer: http://www.maxwebportal....
License: Freeware
Operating System: Win 95/98/ME/2000/XP, Access 97/2000, SQL
Amdac Systems has been setting new standards in web hosting, software development, and marketing solutions since 2002.
Developer: Dave
License: Unknown
Operating System: Not Available
AWF is a modern Open Source Content Management System and development framework based on PHP 5 and the Smarty template engine.
Developer: AWF-CMS.org
License: GNU General Public License (GPL)
Operating System: UNIX compatible OS (like Linux, BSD, Solaris or OS X) and Apache HTTP server for production environments. Windows is experimental, but seems to work quite well.
UMFPACK is a set of routines for solving unsymmetric sparse linear systems, Ax=b, using the Unsymmetric MultiFrontal method.
Developer: Timothy A. Davis, University of Florida
License: GNU General Public License (GPL)
Operating System: OS Independent
Collaborative Portal Server (CPS) is the most complete Open Source platform available for building Enterprise Content Management (ECM) applications.
Developer: CPS
License: GNU General Public License (GPL)
Operating System: Linux/Unix/MacOS/Windows

More Info