amazon s3 ec2 web services fileapi backup

Greetings! I don't intend for this to be an advertisement for Amazon, so if folks want to discuss other similar services that's totally cool, and we might even change the name of the group. But, I've been spending (too many) hours researching Amazon Web Services recently and thought some people might be interested to know what it's all about and how they might be able to use this stuff...