Update 4:00: Illiad and WorldCat are back up! Thank you for your patience! 

Update 11:53: The vendor has determined and resolved the cause of the service issues. They are in the process of bringing services online. The complete restoration may take a few hours.

11:09: The vendor that provides Illiad and Worldcat is experiencing service outages. They assure us that they are working diligently to restore service but have no estimated time for resolution. We will update this message as new information becomes available.