A List of Amazon S3 Backup Tools (by Jeremy Zawodny)
jeremy.zawodny.com/blog/archives/007641.html
From the page
Saved with the link. Notes from 2007 to 2016 are mostly the page's own words, so this is probably an excerpt.
In an effort to replace my home backup server with Amazon's S3, I've been collecting a list of Amazon S3 compatible backup tools to look at. Here's what I've discovered, followed by my requirements.