Sulu is a highly extensible open-source PHP content management system based on the Symfony framework. Sulu is developed to deliver robust multi-lingual and multi-portal websites while providing an intuitive and extensible administration interface to manage the full content lifecycle.
Have a look at the official Sulu website for a comprehensive list of Sulus features, core values and use cases.
A collection of Lego bricks for the CMS Sulu
This is a collection of very basic examples, which where created during learning Sulu.