dotCMS is a free software / open source web content management system (wCMS) for building/managing websites, content and content driven web applications. dotCMS includes enterprise CMS features such as support for virtual hosting, WebDav (beta) ,structured content, clustering and can run on multiple databases PostgreSQL, MySQL, MSSQL and Oracle, and is available as software that can be installed on a web server or via a hosting provider (dotMarketing is now offering the onDemand virtual hosting service for clients, and has also registered an image available via the Amazon Elastic …

Plone is a free and open source content management system built on top of the Zope application server. It is suited for an internal website or may be used as a server on the Internet, playing such roles as a document publishing system and groupware collaboration tool.
Plone is released under the GNU General Public License (GPL) and is designed to be extensible. Major development is conducted periodically during special meetings called Plone Sprints. Additional functionality is added to Plone with Products, which may be distributed through the Plone website …

MiaCMS is a powerful, flexible, and easy to use open source content management system. It can be used to build websites of all shapes, sizes, and scenarios. MiaCMS features simple installation, graphical (WYSIWYG) HTML editors, RSS content syndication, a powerful 3rd party extension system, flexible theming capabilities, site search, RESTful content access, user management, multilingual capabilities, plus much more.
MiaCMS is released under the terms of the GNU General Public License (GPL) Version 2. It is written with the PHP & JavaScript programming languages and uses the MySQL database. The …

ImpressCMS is a free, open source , community-developed content management system for building and maintaining dynamic web sites, written in the PHP programming language and using a MySQL database.
The ImpressCMS Project was formed in late 2007 as a result of a division in the XOOPS community[1]. Many of the developers for ImpressCMS were veteran developers, designers and users with extensive experience with XOOPS and sought to establish a new community built CMS with a philosophy of openness, community contributions and continual improvements in code and features. The core platform …

CMS Made Simple is an open source (GPL) package, built using PHP that provides website developers with a simple, easy to use utility to allow building small-ish (dozens to hundreds of pages), semi-static websites. Typically our tool is used for corporate websites, or the website promoting a team or organization, etc. This is where we shine. There are other content management packages that specialize in building portals, or blogs, or article based content, etc. CMS Made Simple can do much of this, but it is not our area of …

SilverStripe is a free and open source programming framework and content management system (CMS) for creating and maintaining websites. The CMS provides an intuitive web-based administration panel, allowing any person to maintain their website without knowledge of markup or programming languages.
SilverStripe offers a flexible MVC development framework known as Sapphire. Much like Ruby on Rails, but for PHP, it ensures developers are capable of extending and enhancing the functionality of the CMS and the website. More importantly, SilverStripe provides developers with complete control of the generated markup; allowing for …

DotNetNuke is an open source web application framework written in VB.NET for the ASP.NET framework. The application’s content management system is extensible and customizable through the use of skins and modules, and it can be used to create, deploy, and manage intranet, extranet, and web sites.
Introduction
The DotNetNuke application
originally evolved out of another project, called the IBuySpy Workshop.
The IBuySpy Workshop application had been created by Shaun Walker as an enhancement to the IBuySpy Portal starter kit.

Drupal is a free software package that allows an individual or a community of users to easily publish, manage and organize a wide variety of content on a website. Tens of thousands of people and organizations are using Drupal to power scores of different web sites, including

Community web portals
Discussion sites
Corporate web sites
Intranet applications
Personal web sites or blogs

Joomla is an award-winning content management system (CMS), which enables you to build Web sites and powerful online applications. Many aspects, including its ease-of-use and extensibility, have made Joomla the most popular Web site software available. Best of all, Joomla is an open source solution that is freely available to everyone.