S3 BackupSystem is freeware application that allows making secure and reliable backup copies of your files and folders to Amazon S3 online servers.

You can use S3 BackupSystem for either manual or automatic backup using built-in scheduling system. The program also provides extensive abilities to perform a restore of previously backed up files into original or user-defined folders.
If you care about traffic, S3 BackupSystem offers bandwidth limiting option as well as compression of files before uploading them to Amazon S3. If you care about security, our application allows use of SSL connection and encryption of files using the best and the most proven cryptographic algorithm - AES.
Intelligent update feature provides detection of changed files and optional online removal of locally deleted and/or excluded files.

The license of this software is Free Trial Software, the price is $29.95, you can free download and get a free trial.