Due to several work related issues it has taken longer than expected for me to publish this second part in our "Build A Digg Clone With Drigg For Drupal" tutorial, but the wait is over as this is the second part you are now reading :).
Registration for DrupalCon DC is now open and the DrupalCon DC website live. In the two hours after the first announcement went out via Twitter, 200 people registered to come to DrupalCon!