Drupal is a great software which is very close to my heart. One of the core concepts of Drupal is its hook system that allows modules developed by many developers to elegantly interact and achieve higher and better functionality. It depicts how team work, collaboration, and respect for standards (values) can guide everyone to reach optimal levels of performance which is difficult when one is rigid, does not adhere to standards, and not open to other's contribution.

Drupal applications are scalable, flexible, and open. Drupal development is an insightful journey! Drupal can be used as a PHP framework to build advanced web applications that suit a variety of business needs. It is used as a back-end system for about 2% of all websites worldwide ranging from personal blogs to larger corporate and political sites including whitehouse.gov and data.gov.uk. It is also used for knowledge management and business collaboration.

The standard release of Drupal, known as Drupal core, contains basic features common to most CMS. These include user account registration and maintenance, content management, menu management, RSS-feeds, page layout customization, and system administration. The Drupal core installation can be used as a brochure-ware website, a single- or multi-user blog, an Internet forum, or a community website providing for user-generated content.

Over 8000 (as of July, 2011) free community-contributed modules, known as “contrib” modules, are available to alter and extend Drupal's core capabilities and add new features or customize Drupal's behavior and appearance. Because of this plug-in extensibility and modular design, Drupal is sometimes described as a content management framework. Drupal is also described as a web application framework, as it meets the generally accepted feature requirements for such frameworks.