Virtually host your website with S3 - Wow, this is just so amazing, it's going to completely change the way that people do website hosting. Now, we just need a simple way for normal humans to publish their websites to S3, say through a Dreamweaver plugin.
I'm going to see if I can do this with the way I'm hosting static sites with Rails, this could make it really easy and cheap for me to host static websites for customers. Well, right now it's really easy and cheap with static Apache sites, but this way could be even easier and more scalable.
