Building a Web Application with Ruby on Rails and Amazon S3
Amazon Web Services Developer Connection is starting to gather a great collection of tutorials for using their amazing web services. Building a Web Application with Ruby on Rails and Amazon S3 is one that caught my eye. It is full of short examples that shows virtually every part of the S3 service and how to access it using Rails.



Hello,
You may want to take a look at this amazing stuff ;) from Alex.
http://www.eribium.org/?p=83