Update: Amazon has resolved all issues and the service should be operating normally as of 6:00PM EST.
Amazon is currently having issues with their infrastructure which is causing issues with our site functionality. We (and millions others) use Amazon Web Services to host our site and files. You can see their current status of the situation here: https://status.aws.amazon.com/
You can also see some of the real time responses from people affected by the outage here: https://twitter.com/search?q=aws+status
We thank you for your patience in this matter while we hope to hear from Amazon shortly announcing a fully recovery of service.