As with all other AWS, there are no minimum usage commitments, no monthly fees and the setup is plain and straight forward. Here are the steps;

1. Sign up for CloudFront.
2. Put your most frequently accessed static content into an Amazon S3 bucket and mark it as publicly readable.
3. Create a new CloudFront Distribution using a single REST-style POST call. Capture the domain name returned by the call.
4. Generate fresh URLs for your content using the domain name from step 3 and hand them out. By using our CNAME support you can even make the content appear as if it is coming from your own domain. You can associate up to 10 CNAMEs with each distribution.

CloudFront will take care of the rest. Requests originating anywhere in the world will be routed to one of 14 edge locations (8 in the United States, 4 in Europe, and 2 in Asia). If the content isn’t already present at a particular edge location it will be fetched from S3 and cached at the edge.