We've actually started experimenting with converting our static file serving to "proxying to S3 + caching." This is simpler from deployment and development per

We've actually started experimenting with converting our static file serving to "proxying to S3 + caching." This is simpler from deployment and development perspectives (for companies that do not have a distributed filesystem, like Google with its GFS): * for deployment we do not need to maintain a pool of stateful boxes with files on them and keep these files in sync. * for development, engineers now have a programatic interface for managing your static assets.