Content management system built on PHP, MySQL, Twitter Bootstrap
The world's leading content management systems (CMS) written in PHP
Open source content management system
The Pagekit CMS
Leveraging the shoulder of a Giant, x205 is complete ready to use CMS.
PHP User Login and Management System based on Codeigniter
Very light CMS to combine with Libreoffice
Just a redesigned theme for Buddypress
Elemata is an open source content management system.
Silverstripe module to display content in a flipbook layout
MVC2 based HTML 5 enabled Web Application Framework
CMS Bridges - a common API for module developers