You might heard already about the Amazon S3 and you’re wondering what is it. So, here’s the definition given by AMAZON.

Amazon S3 is storage for the Internet, offering a simple web services interface that can be used to store and retrieve any amount of data, at any time, from anywhere on the web. It is designed to make web-scale computing easier for developers, providing access to the same highly scalable, reliable, fast, inexpensive data storage infrastructure that Amazon uses to run its own global network of web sites.