A comparison of Amazon S3 backup tools, a mixture of Windows, Linux and Mac options.
This site provides a list of Amazon S3 interfaces, it seemed to be pretty comprehensive as at 27 Oct 2007.
A list of Amazon S3 interface applications provided by Amazon's Developer Connection.
Bucket Explorer is a user interface (front end) for Amazon S3. It comes in a Windows and a Linux distribution. If you provide "useful" feedback during their beta period, they'll give you a free licence!
Duplicity performs incremental, encrypted backups onto a range of interfaces including scp, ftp, rsync, WebDAV and Amazon S3. It uses standard tar, rsync and GPG tools, so the data can be recovered manually.
JS3tream will read stdin and write the data to Amazon S3. It can be wsed with tar or gzip for online backup. It can also read from S3 back to stdout. Data is stored in sequentially numbered files, so it could be reconstructed with cat.
JungleDisk is a WebDAV server which stores it's data on Amazon S3 (via a local cache). It's commercial, non-free software for Linux, Mac and Widows and costs $20, lifetime registration.
Rsync to S3 is a service which combines EC2 and S3 to provide a bandwidth efficient S3 based backup mechanism. It takes advantage of the free bandwidth between EC2 and S3 to overcome the limitations of S3 for rsync backup.
S3Browse allows you to browse your Amazon S3 account via their web site. Fancy that!
S3sync and s3cmd are ruby interfaces to Amazon S3. S3cmd provides a command line interface to manage S3 buckets. S3sync provides a command line interface to copy data to and from S3.
Quillen is a backup tool backed by Amazon S3. It's currently (Oct 2007) in Alpha.
Encrypted backups which don't require you to trust the backup provider, although the code is open source but not free (as in freedom) and so there is only one possible provider...
filicio.us is a backup service based on Amazon S3. You upload your files (via a flash uploader) to filicio.us and they store them on S3. They charge a small premium over S3 prices.