[Update] PSN is down, Sony working to resolve the issue
Update: Apparently it is back up for some, so get to downloading those Resident Evil offerings.
Original: PlayStation Network is apparently down, and according to Sony's official PlayStation Twitter, the tech team is aware of the issues and is working on getting it up and running again. There's no word just yet from Sony on what is causing the issue, and no new updates have been posted since the original tweet four hours ago. We'll keep you posted, and in the meantime, if it comes back up for you, please let us know. Thanks, 1UP.