Content Management Systems (CMS) help businesses actively update their websites. With CMS, businesses can store content at a centralized location, away from the design template. You can also easily format and process the content on the website. Images, products, categories - everything can be updated as and when you need. A CMS employs simple but powerful browser-based tools with which you can modify, edit or delete website content. It is often very user-friendly and can be used for one-to-one marketing, e-commerce, and CRM. Some powerful open source CMS we can employ are: Drupal WordPress Alfresco Magento Modx CMS Joomla TYPO3 Xoops DotCMS Movable Type Expression Engine Radiant Frog CMS eZ Publish b2evolution Plone Jahia