The problem has been fixed and the maintenance has been cancelled.
An unplanned issue affected backend systems and brought entire systems down. We are working to fix the problem and expect to resolve the issue in less than 45 minutes.
We will be running a maintenance in order to improve capacity in our infrastructure starting on January 13th, 2014 at 11:00PM ET and to be completed on January 13th, 2014 at 23:59PM ET.
Some slow slowdowns are expected in the user interface web application during the maintenance.