With over half a million contributing developers in 200+ countries, Drupal powers over 2% of the web including such diverse sites as The White House, Economist.com, Examiner.com, Amnesty International, MTVuk, .net magazine and Data.gov.uk.
Drupal (pronounced drew-pull) is a Content Management System and web application development software written in a popular scripting language – PHP.
Drupal has over 11,000 modules and over 1,000 themes, along with both a point and click interface to allow tech-savvy people to put together websites with no programming experience; and an API and framework for programmers to develop unique applications.
Best of all, it’s free, open source software!
www.drupal.org