Amazon S3 vs. Mozy vs. Jungledisk vs. Crashplan discussion of features

This post has the instructions of how to use Amazon s3 to automate backups from the Mac.  It has a very useful if slightly dated discussion of the  options.  Most of the comments are 2 years old but still have some good points.  If you are considering online storage, you will probably find this interesting.

Another more modern post with these users sharing their experience/recommendations.  A List of Amazon S3 Backup Tools Wow even open source software like Zmanda/Amanda has it!