Not too long ago, Amazon released their Simple Storage Service (or “S3” for short). It provides a hosted storage platform which developers can build all sorts of applications on top of. Smugmug, a popular photo sharing web site, is using it to store and host pictures.
I’ve been considering using S3 as the backend to an on-line backup, since I’d been beating that for a while (see: Swimming Pools and Hard Disks and Cheap On-Line Storage Coming Soon).
In a few days I’ll write about how to do this–I’m only partially through the process right now. But right now I want to lay out the motivation for doing this.