This is a complete code with simplest way possible to upload files from asp.net to amazon S3 file storage. It also has option to create a particular folder inside you S3 bucket and then upload files into that folder.

Check the following link for more details on configuring S3 and uploading files. http://goo.gl/ySS5lQ

Demo: http://elconodisha.com/amazon

Features:

• Easiest Way to Upload Files Into Amazon S3
• Well Documented Source Code , With Comments Describing Codes.
• Just Add your API key and it will start working
• Supports Creating folder inside amazon bucket
• Based on Asp.net Webforms

codecanyon-14801900-amazon-s3-file-upload-via-aspnet-web-forms.zip