Have worked on websites using various CMS: Some of them are listed. A content management system (CMS) is a software application or set of related programs that are used to create and manage digital content. CMS are typically used for enterprise content management (ECM) and web content management ##WordPress is a free and open-source content management system (CMS) based on PHP and MySQL. ... WordPress is reportedly the most popular website management or blogging system in use on the Web, supporting more than 60 million websites ## Joomla is an open source platform on which Web sites and applications can be created. It is a content management system (CMS) which connects your site to a MySQLi, MySQL, or PostgreSQL database in order to make content management and delivery easier on both the site manager and visitor. ## Drupal is free, open source software that can be used by individuals or groups of users -- even those lacking technical skills -- to easily create and manage many types of Web sites. The application includes a content management platform and a development framework.