Libraries are about content: acquiring it, storing it, indexing it, retrieving it, and presenting it. Content management systems (CMS) help libraries accomplish these tasks on the Web by providing a back-end structure for a Web site so that librarians can focus on content. Authors Andy Austin and Christopher Harris have evaluated a number of these systems and have selected Drupal as the CMS with the best balance of usability and power. In this issue of Library Technology Reports, you will learn how this open-source content management system makes use of the separation of content and formatting to allow you to create powerful, dynamic library Web sites. In addition to case studies, most of the report is dedicated to a useful and user-friendly how-to guide for libraries interested in utilizing Drupal and its dedicated developer community to build dynamic and easy-to-use library Web sites. Topics Covered in this Issue Include: Why Drupal? Who is Drupal? System requirements and installationAdding stuff to a Drupal site, and user managementCustomizing your site, case studies, and Drupal resources