This document discusses using Amazon S3 and EC2 services with Ruby on Rails applications. It describes S3 as a redundant storage service that can be used for file storage and backups. EC2 is described as an on-demand computing service that provides virtual servers running Linux. The document provides examples of using S3 for asset hosting, backups, and user data storage with Rails applications. It
![Rails Conf Europe 2007 - Utilizing Amazon S3 and EC2 in Rails](https://cdn-ak-scissors.b.st-hatena.com/image/square/015be3e2e2dd224fc9441364fe6959fe40b5cc1c/height=288;version=1;width=512/https%3A%2F%2Fcdn.slidesharecdn.com%2Fss_thumbnails%2Frails-conf-europe-2007-utilizing-amazon-s3-and-ec2-in-rails4476-thumbnail.jpg%3Fwidth%3D640%26height%3D640%26fit%3Dbounds)