This is a small course focus on uploading files to the cloud in this case Amazon S3 which stands for Amazon Simple Storage Service.  The great thing about S3 is that is very cheap and very scaleable. 

Wether you are building a blog, video or photo application as your application gets bigger you might need to start saving your data somewhere else rather than in your server. 

Hosting your videos and photos with S3 can really improve your application speed, hosting prices and even your SEO results.

This course focuses on Amazon S3 but after you learn how to do it wth S3 you will find easier to do it with other cloud space providers.