I have also used this method for some time. An advantage the author does not mention is that this method is required if you want to host your files on a CDN lik

I have also used this method for some time. An advantage the author does not mention is that this method is required if you want to host your files on a CDN like Amazon's CloudFront. Another point is that you should host your CSS and image files using this technique (like the author also notes... because you don't have to rely on a browser's cache expiration and because you can cache stuff aggressively [like setting an expiration date 10 years from now]).