Wordpress is one of mine best cms platform . 5 years before i have used it and now i am used to. I always love to use it because of it's true openness code. Core, Themes & plugin you can change the frameowork in may ways.
Ten year before, Wordpress was started by Matt Mullenweg and Mike Little, and then it grown a lot by thousand of contributors the company behind WordPress.com and one of the biggest stewards in the development of the platform as a whole, announced last week that it had raised $50 million in a secondary stock transaction.
Wordpress is not now only a cms or personal blogging system, it is now a full fledged application framwork. Most popular application Shopping cart systems, Twitter analytics services and even robust WordPress site management solutions can all be built on WordPress.