Amazon Starts Spot Market for Reserved Instances

Amazon Web Services has set up an online marketplace where customers can sell their excess EC2 Reserved Instances to other AWS customers.
Reserved Instances cost less because buyers make a one-time payment to reserve compute capacity for a specified term and get a discount on the hourly charges for that instance.
Amazon will charge sellers a 12% fee.
Interested parties can browse the site for term lengths and pricing options outside the standard one-year and three-year term lengths.
AWS suggests owners may want to move instances to a new AWS Region, change to a new instance type or sell capacity for projects that end before the term expires.

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