No, I don't think so. However, Amazon offers a free micro instance for one year (which I use to run an IRC bot), and after a few weeks of usage they asked me to participate in a survey, which they gave me a $25 gift certificate for AWS for completing. So, if you can get a free $25 out of them, then it's totally worth it
(just make sure you run on spot instances, otherwise it's like 10x more expensive)