http://aws.amazon.com/ec2/pricing/
- http://aws.amazon.com/ec2/pricing/pricing-on-demand-instances.json
- http://aws.amazon.com/ec2/pricing/pricing-reserved-instances.json
- http://aws.amazon.com/ec2/pricing/ri-light-linux.json
- http://aws.amazon.com/ec2/pricing/ri-light-mswin.json
- http://aws.amazon.com/ec2/pricing/ri-medium-linux.json
- http://aws.amazon.com/ec2/pricing/ri-medium-mswin.json
- http://aws.amazon.com/ec2/pricing/ri-heavy-linux.json
- http://aws.amazon.com/ec2/pricing/ri-heavy-mswin.json