WordPress 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. WordPress is used by over 14.7% of Alexa Internet’s “top 1 million” websites, and as of August 2011 manages 22% of all new websites. WordPress is currently the most popular blogging system in use on the Web, powering over 60 million websites worldwide.