Coscms is a small and simple CMS system / framework for building websites. Easy to use, administer, and extend with modules (web and shell modules, and templates). Aims is modularity, easy install on Linux (can be done with two scripts). Export websites as simple profiles. Tested with Debian systems (like Ubuntu 10.04 or Debian 6.0.0). You will need PHP >= 5.3 and a MySQL database. So far: Only tested with Apache2 on Debian systems.
Login with admin / admin. A simple demo with a blog (blog module) and a CMS (content module) and a comment module (comment) and a few more modules.
Install (Only tested with Linux):