A popular content management system that is available as a hosted service (wordpress.com) and self-hosted platform (wordpress.org).
WordPress started out in 2003 as a blogging platform that provided users with a more visually appealing and user-friendly writing experience when creating web content. Since then, it has become one of the most popular content management systems in the world, with over a million websites using its platform. WordPress has grown from a simple blogging platform to a complete content management system with thousands of plug-ins, themes, and self-hosted solutions that are easy to use, even for users with very little technical know-how.
How to Use WordPress for Business
Inc. Magazine (May 3, 2010)