http://highscalability.com/blog/2015/1/12/the-stunning-scale-of-aws-and-what-it-means-for-the-future-o.html
This is a great summary of an AWS talk from last year. The statistics given are, as the title says, stunning. Especially:
"All 14 other cloud providers combined have 1/5th the aggregate capacity of AWS (estimate by Gartner)"
There are also some great points made about data centre availability as well as the current state of network equipment.
Joe
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Joe Topjian
Systems Architect
Cybera Inc.
Cybera is a not-for-profit organization that works to spur and support innovation, for the economic benefit of Alberta, through the use of cyberinfrastructure.