Drupal is often compared to a number of commercial content management systems including Crown Peak, Expression Engine, Clickability and Site Life in terms of capabilities. None of these systems offer the range of features that can be found in Drupal or the flexible, developer-friendly architecture that allows us to rapidly deploy dynamic web sites. In terms of sustainability, these platforms charactertistically lack the innovative approach to development embraced by the Drupal community, with updates and new features continually being added to the platform. These systems typically do surpass Drupal in terms of out-of-the-box reporting and metrics tools, generally providing views of data that is also stored in other systems. For instance, detailed page tracking information can just as easily be pulled from a CDN and integrated into a Drupal site for much less than the costs of per-seat licenses from a commercial vendor over a 1 month period.