I'm more interested in an ec2failureanticipated.com. Sites that have a substantial operational presence in US-East that routed around the outage. I'm only aware of Netflix. Others?
This EC2 outage only affects on single AWS region. This is exactly why AWS provides multiple regions and availability zones. The sites on that page should have taken advantage of these features. Don't put all your eggs in one basket (cloud).
This is not the sites' fault. AWS promised that different Availability Zones would have no common single points of failure, but AWS broke that promise.
Taking advantage of different availability zones is a business decision based on cost. Of course I don't mean just cost of the servers in different zones, the highest cost is designing and testing your architecture for the additional uptime. It's easy to say that they "should have" done it without knowing how each one of them (us) evaluated that decision.
The trouble with any of these sorts of sites is there's no way of only showing the "big" sites, filtering out the sites where the only user is the owner's mother.
I assure you we have been going through the list and pruning as carefully as possible. People that are submitting multiple references to the same site - or people trying to get their functioning site put up on a list with a lot of attention on it - are being handled accordingly.