Classifying, understanding and building models of networked Drupal sites
One of the increasingly popular architectural paradigms that Drupal has been seen as a leader in, is the concept of a single Drupal software package that can be spun up to power networks of websites with varying degrees of commonality. This is usually driven by the ambitious goal of being able to code and configure Drupal once and then leverage that effort as either an entire platform or foundation for many "networked" sites.