A web content management (WCM) system is a application designed to create, edit, manage, and simplify the publication of Web content to Web sites, in particular allowing content creators to submit content (into an reliable place to host your site) without requiring technical knowledge of HTML or the uploading of files.

Are frequently used for storing, controlling, versioning, and publishing industry-specific documentation such as news articles, operators' manuals, technical manuals, sales guides, and marketing brochures.

This is a list of notable content management systems that are used to organize and facilitate collaborative content creation.

AnyInventory

AnyInventory is the Web's most flexible inventory system. Features include categories and subcategories, user-defined fields, file uploads, and advanced search functionality.

Drupal

Is software that allows an individual or a community of users to easily publish, manage and organize a great variety of content on a website. Tens of thousands of people and organizations have used Drupal to set up scores of different kinds of web sites.

Joomla!

is one of the most powerful Open Source Content Management Systems on the planet. It is used all over the world for everything from simple websites to complex corporate applications. Joomla! is easy to install, simple to manage, and reliable.

Mambo

Full-featured content management system that can be used for everything from simple websites to complex corporate applications.

MODx

Open source PHP Application Framework that helps you take control of your online content. It empowers developers and advanced users to give as much control as desired to whomever they desire for day-to-day website content maintenance chores.

Moodle

Course management system (CMS) - a free, Open Source software package designed using sound pedagogical principles, to help educators create effective online learning communities. It can scale from a single-teacher site to a 50,000-student University.

Nucleus

Is a content management tool that enables you to set up and maintain multiple blogs. It supports multiple languages and includes a commenting system and search feature.

PostNuke

Is software that creates an impressive, dynamic web site and provides the webmaster with a site they can administer with a minimal amount of HTML knowledge through a web browser.

SilverStripe

SilverStripe is an intuitive content management system atop a powerful programming framework.

XOOPS

CMS that allows administrators to easily create dynamic websites. It is an ideal tool for developing small to large dynamic community websites, intra company portals, corporate portals, weblogs and much more. It can be installed on an Internet host with a PHP-capable web server (e.g. Apache) and a database (e.g. MySQL).