24 Ways has an excellent article on using Google App Engine as your own Content Delivery Network.

A CDN is a network of servers around the world to serve content from your site from the nearest physical location. All the large sites (Yahoo, Google, Amazon, etc) use them.

After reading the above post, I was also curious to find out how if Google App Engine helps in the following: compression, expires headers and versioning. It looks like it does. Continue reading →