This document discusses how a content management system (CMS) can be one of the best marketing tools for a business. It summarizes some key benefits of a CMS, including allowing businesses to tweak layouts and designs, add or remove functionality, and gain insights from user data. The document then provides examples of how the Drupal CMS allows customization of layouts and blocks, flexible display of content through views, user roles and permissions, SEO features, reporting, and rules-based behaviors. It concludes that a CMS gives businesses immediate control over small changes while freeing up developer time for more strategic projects.