This document provides an overview of content management systems (CMS) and analyzes the capabilities of various open source CMS solutions. It discusses Smile, a company that specializes in open source solutions, and references some of Smile's clients. The document then covers the fundamentals of CMS, describes several popular open source CMS like Drupal, Joomla, and Typo3, and analyzes their strengths and evolution. It also mentions some promising new solutions. The goal is to help clients select the best CMS for their specific needs.