There is lots of PHP based blogging software that can easily be used as a content management system, CMS. This post is about fairly new software that has many features. Meet Serendipity.
Webdevelog is a web development and design blog collecting the best resources, tips and tricks for content management systems (like Wordpress and Durpal), forum engines (like Simple Machines Forum and phpBB), design (like Photoshop and Illustrator) and programming (like PHP and JavaScript), frameworks (like CakePHP and jQuery) and integrated development environments (like Eclipse or NetBeans).