Drupal is an open source content management platform started in 2001. It has strengths in extensibility, theming, security and content management. While it has a learning curve, it is well suited for brochure sites, social networks, member directories, publishing and combining multiple features. Drupal is best for complex sites that combine many functions, while other options may be better for blogs, ecommerce or single purpose high traffic sites. The Drupal community and available modules allow rapid prototyping of dynamic and robust sites.