Since then, they have created a wide variety of virtualization management tools that have taken the modern data center by storm. The use of virtual machines makes PC servers much more productive, enabling the use of more of their internal memory and processing power and distributing loads across a wider hardware base.
Now most IT shops have virtualized parts of their servers. And while Citrix and Microsoft are players in this market, VMware (now owned by EMC) is still a leader, moving into open source cloud computing with a series of announcements and new products.
ESX virtualization software
Some of the services are older and better known, such as renting online storage using Simple Storage Service (S3) or setting up virtual supercomputers to work on knotty CPU-intensive computations using the Elastic Compute Cloud (EC2). But there are others that are newer that serve important niches, such as
The ability to stream videos using CloudFront.
Tie Amazon's resources with your own data center with its Virtual Private Cloud service.
Bring up database servers with SimpleDB and Relational Database Services.
Automatically add or subtract computing resources as needed with its Auto Scale and Elastic Load Balancer features.
There are now more than a dozen different Amazon services and the company continues to innovate and be a leader in cloud computing. As an example, Ubuntu has its Electronic Cloud that can make use of AWS programming interfaces.
Amazon Web Services