For businesses, Amazon is more than an online retailer -- it's a computing and storage provider. That's in large part thanks to Andrew Jassy. Jassy was previously responsible for assembling Amazon's customer relations management team and drafting the business plan for Amazon's foray into digital music. Now, he runs Amazon Web services, which include Amazon EC2 and Amazon S3.
Despite the occasional service outage, Amazon's cloud computing has become a important tool for many tech companies, allowing startups to get up and running in a cost-efficient way and larger companies to perform day-to-day operations without having to run their own data centers. Among Amazon clients: Netflix, Instagram, Quora and the Platform as a Service company Heroku.