Drupal is a free software package that allows an individual or a community of users to easily publish, manage and organize a wide variety of content on a website. Tens of thousands of people and organizations have used Drupal to power scores of different web sites, including

• Community web portals
• Discussion sites
• Corporate web sites
• Intranet applications
• Personal web sites or blogs
• Aficionado sites
• E-commerce applications
• Resource directories
• Social Networking sites

Drupal is open-source software distributed under the GPL (”General Public License”) and is maintained and developed by a community of thousands of users and developers. Drupal is free to download and use. If you like what Drupal promises for you, please work with us to expand and refine Drupal to suit your specific needs.

Pricing: Free
Source: http://drupal.org/