eZ publish - http://www.ez.no/
An open source content management system and development framework, with dual professional license. Advanced workflow system, content versioning, multilanguage possibilities, collaboration, e-commerce functionality, content class system, role based access control, discussion forums.
Apache Lenya - http://lenya.apache.org
Java based open source content management and publishing system designed to handle XML. Lenya uses Apache Cocoon from the Apache Software Foundation and is based on open standards such as XML and XSLT.
http://webmake.taint.org/ - http://webmake.taint.org/
Simple content management tool based around a templating system for HTML documents with an emphasis on page generation.
Textpattern - http://textpattern.com/
A flexible, elegant, easy-to-use content management system for all kinds of websites, even weblogs.
http://www.opencms.com/ - http://www.opencms.com/
A system based on java technology providing WYSIWYG editor, workflow engine and administration, all in a Web interface and multiplatform environment.
http://radiantcms.org/ - http://radiantcms.org/
A content management system (CMS) designed for small teams. Download, demo, documentation, and a blog are provided. (Ruby)
SilverStripe - http://www.silverstripe.com/
A content management system (CMS) that includes a programming framework. Site includes community support, demo, download, and a blog. (PHP 5.2+)
http://www.midgard-project.org/ - http://www.midgard-project.org/
A content management framework used by open source and commercial applications alike. News, references, applications, support and developer resources.
Open Source Content Management (OSCOM) - http://www.oscom.org
International not-for-profit organisation dedicated to open source Content Management. Conferences, weblog and mailing lists.
Campsite - http://www.campware.org
Unicode based multilingual system for news publications. A project of the Center for Advanced Media-Prague (CAMP). Documentation, demo and support (free and commercial).
http://www.plainblack.com - http://www.plainblack.com
Full featured CMS and application framework system with modular design. Commercial services available.
Magnolia - http://www.magnolia.info/en/magnolia.html
Content management suite. Includes an open source, community version.
InfoGlue - http://www.infoglue.org
An advanced, scalable, and robust content management platform written in 100% Java. Key features includes multi-language support, reuse between sites, integration capabilities, metadata tagging, and WYSIWYG editing in IE.
http://www.pligg.com - http://www.pligg.com
An open source social content management system (CMS) that creates an interactive website where users have the power to submit, vote, and talk about the news that is important to them. (PHP,MSQL)
http://www.mmbase.org - http://www.mmbase.org
Object-oriented Web publishing system based on Java which use does not require programming skills. Site features information about the software, the latest stable release, and a developers section.
APC ActionApps - http://actionapps.org/
Collaborative web publishing tools for not-for-profits organisations. General information and developer center. Links to support network. No direct end-user support. (PHP, MySQL)
Open source CMS list - http://www.la-grange.net/cms
List of open source content management and application server systems maintained by Karl Dubost. Includes interesting sections or email, IRC and other systems.
CMSimple - http://www.cmsimple.dk
Content is stored in a single HTML-file. CMS is less than 50 KB. Integrated WYSIWYG online editor (both IE and Mozilla). Open source.
http://www.ariadne-cms.org/ - http://www.ariadne-cms.org/
A full-featured Web application server and content management system with a rich user interface.
http://qixite.sourceforge.net/ - http://qixite.sourceforge.net/
Windows and Linux desktop application for generation and maintenance of static Web sites. Uses XSL for templates and UTF-8 coded pages allow multilingual output.
DEV web management system - http://dev-wms.sourceforge.net
Content management system for web portals. Download and modules.
Naber, Daniel - http://www.danielnaber.de/tree/
Creates a structured list of your local html files - you may want to call the result a sitemap. It's written in Perl and freely available under the GPL.
Ferret CMS - http://www.opensistemas.com/619+M52087573ab0.0.html
Provides a simple Content Management System for creating small to medium-sized websites.
http://props.sourceforge.net/ - http://props.sourceforge.net/
Publishing system designed for newspapers and magazines(GPL).
http://casm.portologic.hu - http://casm.portologic.hu
Offline content management tool. Enables developers to separate the content from display properties, therefore eliminating unwanted redundancy of the site source. Site offers documentation, examples and site source.
http://www.cofax.org - http://www.cofax.org
A Web-based text and multimedia publication system designed to simplify the presentation of newspapers on the Web and to expedite real-time Web publication.
Mason CM - http://mason-cm.itassistance.biz/
Content management system. (Perl) [OS Independent]
http://www.genos.org/gmf/en/index.php - http://www.genos.org/gmf/en/index.php
An open source CMS project for businesses. Includes customer management, project management, trouble ticketing, publishing contents, and other modules.
SOS Webpages - http://www.soswebpages.com
An open source website building and management system that allows for quick and easy modification of text, images, banners and menus. (PHP5,MySQL)
Contentor - http://contentor.net
An easy-to-learn system designed to meet the needs of small non-profit organizations. Product presentation, news, demo and help.
http://www.e-xoops.com - http://www.e-xoops.com
Professional module, theme and hack support site, for e-biz oriented Xoops site administrators.
http://www.cmsinfo.org - http://www.cmsinfo.org
Internet community of users and developers of content management systems. Dedicated to provide news and information of the open source weblog niche.
TT Web Site Manager - http://www.technotoad.com
Free general purpose database driven Web site management system. Support resources, forum and discussion of "Doleware".
METAjour - http://www.metajour.org
PHP/MySQL object oriented framework content management system. GUI and advanced template system partially based on Smarty.
http://www.hachmeister.org/ - http://www.hachmeister.org/
Open source content management system written by Kasper Skårhøj.
http://www.dpp-web.de - http://www.dpp-web.de
A module based web content management framework (PHP).
Shaman Project - http://shaman.sourceforge.net
Content management tool, primarily designed for distance learning. It is free and open source (BSD license) and relies on free products like Jakarta Slide and Cocoon.
http://www.fraber.de/sitec - http://www.fraber.de/sitec
Content management system running on SWI Prolog (alpha). Uses a compilation approach rather than interactive modifications. Includes automatic indices and site maps.
eNdonesia Portal - http://www.sourceforge.net/projects/endonesia
Open source portal scripts.
Planet Of The Penguins (POTP) - http://potp.sourceforge.net
Lightweight system for PHP/MySQL with port to ASP/SQLServer also available. Gateway to Sourceforge project pages and author's site.
http://www.typo3.org - http://www.typo3.org
High-end open source content management system with a host of features. Written in PHP/MySQL. Large and active community, documentation and support resources.