Drupal
Drupal is a free and open source content management system (CMS) and content management framework (CMF) written in PHP and distributed under the GNU General Public License. Drupal is highly rated as an adaptable, secure CMS. We strongly endorse for many of our projects. See more about why we endorse Drupal here.
Solutions
Stauffer New Media Development has deployed countless websites, and many mobile apps using Drupal as a core software foundation. The functionality and extensibility offered by the Drupal platform, not to mention the community and intellectual firepower behind it, makes Drupal not just a CMS, but the premiere open source web development tool.