Services modules is the most widely used and robust Drupal module that provides API's for external applications that wish to communicate with Drupal. This presentation aims to provide Drupal Developers a deeper understanding of how Services module works, what ways it can be used, and some ways not to use it. Well discuss how you can debug, extend, alter and even create your own services, resources and servers so that you can get anything in Drupal, into an external application. Id also love to touch base on Services 4.x which will be our stepping stone branch with an upgrade path to Drupal 8