Amazon Web Services makes money: Estimated margins by service (cnbc.com)

Extracted the numbers from the article, which is in prose instead of table form. It looks like most of these numbers are estimates from William Blair[0], not Amazon itself.

Gross margins by service:

* EC2: ~50%

* S3: 50-70%

* EBS: 60-70%

* Aurora: 65-75%

* Bandwidth: 99%

* AWS Marketplace: >30%

[0] https://www.williamblair.com/