http://www.pimcore.org/ - Pimcore is a powerful and robust Zend Framework based PHP content management system (WCMS) for creating and managing digital content and assets licensed under the open-source BSD license. Besides being a full-featured open-source WCMS system, pimcore is the first and premier PHP open source enterprise product information management framework (PIM) available. This means true multi-channel publishing and integration into ecommerce systems like Magento and OXID eSales.
and
http://www.impresspages.org/ - The idea to develop entirely new CMS was born in our heads dealing with people who administer the content of website. As a rule administrators are not IT professionals, while almost all open source CMSs are developed to fulfill the needs of IT professionals.
We decided to focus our efforts on the development of user friendly solution in order to make the management of the website as simple as possible. Quite soon we made a conclusion that the only way out is to automate the process.
One of the most difficult tasks was to find a proper balance of functions performed by developer and user. Flexibility was the road to our success. The style may be defined by developer and automatically applied for all the changes made by administrator. We decided to offer a maximum range of tools for developer and simplified tools for user.