The Drupal content management system is a robust, open source platform for building and managing web sites.
Drupal and its hundreds of contributed modules can be combined and configured to accommodate a tremendous amount of dynamic functionality, including:
Its flexible permissions system, extensive APIs, and extensible architecture also make it well-suited for building custom web applications, which can be hosted by themselves, or integrated within a larger web site.
Proof can help with your Drupal website or application:
Learn more about Drupal [1], or let us know [2] how we can help you.
Links:
[1] http://drupal.org/about
[2] http://www.proofgroup.com/contact/6