During my high school years, I was involved in the development and maintenance of many fansites, most notably De Uilenvleugel and Witch Web. To allow me to focus mostly on design and the technological aspect of the sites, I developed a content management system, blandly dubbed 'Website CMS'.
The CMS used a MySQL backend, but allowed users to edit pages on a per-file basis, because file-based systems were deemed faster at the time. To allow easy editing, FCKeditor (now CKeditor was used for WYSIWYG purposes.
Below are a few screenshots of what the CMS looked like on a test site, where I invited friends to test things out. The idea was that anyone without knowledge of the system should be able to use it -- I like to think I succeeded in that respect.