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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).

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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.

I've written a blog post with more details: http://news.ycombinator.com/item?id=2471899

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.

And even if you had decided it was worth the cost, multiple AZs broke, which AWS promised wouldn't happen.

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