BitNami stacks are available for popular web applications such as WordPress, Drupal, Joomla!, and MediaWiki. In addition to the application itself, the stacks include the other software required to run that application. For example, a WordPress stack will include WordPress, as well as the MySQL database to manage data, Apache Web server to serve the pages, and phpMyAdmin to administer MySQL. BitNami installers are released under the Apache License 2.0. Using automated cloud computing management, BitNami offers users automated application deployments of open source server apps from Amazon EC2 servers. Starting on July 2009 BitNami also offers ready-to-run Virtual Machines (Virtual appliances) The distinct difference between installation of BitNami installers and native installs (e.g. rpms and debs on Linux) are that they are installed in a way as to prevent interference with existing software and libraries. - Andrew Codrington