You can use S3's CORS support to allow your users to upload directly to S3 without even touching your server. Downside is that it can be hard to debug and it re

You can use S3's CORS support to allow your users to upload directly to S3 without even touching your server. Downside is that it can be hard to debug and it requires your users to use JavaScript -- but otherwise it's a big win. See http://philfreo.com/blog/how-to-allow-direct-file-uploads-from-javascript-to-amazon-s3-signed-by-python/ http://philfreo.com/blog/how-to-allow-direct-file-uploads-fr... for a Python example.