Content Management Systems
WordPress.org is a free and open-source blogging tool and a content management system (CMS) based on PHP and MySQL. Features include a plugin architecture and a template system. WordPress was used by more than 23.3% of the top 10 million websites. It is different fro WordPress.com in that it is a full content management system for creating and managing almost any type of website or internet-based application. Read more about WordPress.org. You can also set up an account to experiment with how WordPress works.