Batflat - Lightweight, fast, easy, and free CMS.
Rubedo - Rubedo is an open source big data CMS & E-commerce with Behavioral targeting.
Shopping feed - Shopping feed is a versatile eCommerce application that allows eCommerce stores to thousands of channels.
Joomla Video Plus Theme - Video Plus is a free joomla template suitable for building a video sharing website.
ImpressPages CMS - ImpressPages is a PHP framework with admin panel.
dotCMS - Java-based content management system