Six Minute Introduction and Overview of Stackbox CMS. (direct link)
Content Management Systems shouldn't have big bloated admin areas to learn. Just add tags to your template and Stackbox lets you edit directly on the page. Integrating with your current HTML couldn't be easier.
With Stackbox your site lives on your server, so you don't have to worry about paying expensive hosting fees just to get a content management system. We built Stackbox using PHP5.3 and MySQL to be compatible with modern PHP hosting environments.
Stackbox is an open-source, BSD-licenced project, so you are free to make it your own. Don't see a feature you want? Build it! Then share back with the community, or build a module for the Stackbox Marketplace (coming soon).