Ariadne is a Web Application Framework and Content Management System built with PHP. It allows you to build complex Web applications and sites with ease. It takes care of the mundane stuff like internationalization, security, user management, templating, data retrieval and storage, caching, and site management. It stores content in a structured object store that can be accessed through an extensive filesystem-like API.
Refinery is a Ruby on Rails content management system for small business sites where the client needs to be able to update their Web site themselves without being bombarded with anything too complicated. It is truly aimed at the end user, making it easy for them to pick up and make changes themselves.
Strelin is a content management system for Web sites based on Joomla!. It adds a flexible, enhanced access control layer, which covers not only content but other components as well. It is also possible to control access to modules, plugins, and menu items. A powerful article tagging system allows articles to be grouped by any single tag or a combination of tags.
ShinyCMS is a content management system intended for use by Web designers and Web developers who want to keep a clear distinction between the markup they create and the content their clients can edit. Designers add templates to the CMS, which define page layouts containing editable elements. Users can then build pages by selecting an appropriate template and editing the elements it contains. This approach means that editing content is a simple and safe process, and the site look and feel is kept consistent and professional.
Elefant is a full-featured, but refreshingly simple CMS and PHP Web framework. It features an intuitive, streamlined admin interface, a tightly integrated WYSIWYG editor, dynamically embeddable content objects for building dynamic Web sites without touching code, and an extremely fast, secure, and flexible framework for add-ons and themes. The core CMS includes page editing, a blogging engine, site navigation, file and user management, automatic version control, a tool for translators and multilingual site management, and an in-browser theme/layout editor. It is also extensively documented and has a small but friendly and active developer community.
papaya CMS is a Web Content Management System based on open standards (including XML, XSLT, PHP, and MySQL/PostgreSQL). It is compatible with almost every operating system, is platform-independent, is multi-lingual, offers great usability, and is easy to extend via its plugin system. It is scalable and perfect for business websites.