Originally Posted by falko
I think you will have to pay for storage as well, even if there's no traffic.
The storage part is pretty cheap, it's more the server that will cost.
You can work that out here: http://calculator.s3.amazonaws.com/calc5.html
But... good news! You can run a micro instance, 24 hours a day, for a year, for free:
AWS Free Usage Tier (Per Month):
750 hours of Amazon EC2 Linux Micro Instance usage (613 MB of memory and 32-bit and 64-bit platform support) enough hours to run continuously each month*
750 hours of an Elastic Load Balancer plus 15 GB data processing*
10 GB of Amazon Elastic Block Storage, plus 1 million I/Os and 1 GB of snapshot storage*
5 GB of Amazon S3 standard storage, 20,000 Get Requests, and 2,000 Put Requests*
15 GB of bandwidth out aggregated across all AWS services*
25 Amazon SimpleDB Machine Hours and 1 GB of Storage**
100,000 Requests of Amazon Simple Queue Service**
100,000 Requests, 100,000 HTTP notifications and 1,000 email notifications for Amazon Simple Notification Service**
10 Amazon Cloudwatch metrics, 10 alarms, and 1,000,000 API requests**
I've just finished my year of that, and it did very well for me.