American Airlines, planning to move key portions of its customer website and other applications to the cloud, is assessing services from Amazon.com, IBM and Microsoft. The airline plans to make a decision about a cloud provider “within months,” said chief information officer Maya Leibman. The company aims to revamp portions of the aa.com website so that the customer service and booking site can take advantage of on-demand computing power offered by cloud infrastructure. In a proof-of-concept project during the last several months, American Airlines developers rewrote some website code to determine whether the site would run successfully after a move. “One big benefit is burstability,” Leibman said, referring to the ability to use more computing resources during peak activity, and scale back usage when demand wanes. <br/>