Open-source server applications packaged as self-contained Linux software appliances. Selection includes many development frameworks, webapps, and content management systems. Packages are available as virtual machine images or ISO disc images, allowing for implementation using software-as-a-service, a local virtual machines, or hardware installation.
A free (libre), open-source (GNU GPL), content management platform designed for group collaboration. Open Atrium is based on Drupal (running on Apache, with a MySQL database).