WordPress

WordPress LogoWordPress is a free and open source blogging tool and a content management system (CMS) based on PHP and MySQL which runs on a web hosting service. Features include a plug-in architecture and a template system. WordPress is used by over 18.9% of the top 10 million websites as of August 2013. WordPress is currently the most popular blogging system being used on the Web, powering over 60 million websites worldwide.