On AWS, I am currently running 3 instances of t2.micro free tier machines for a combined hashing power of around 8khps. According to my figures, they are generating approximately 1 STEEM per day on average. I am still crunching the numbers on bigger instances and whether it would be worth upgrading. I am researching the feasibility of creating a CUDA GPU miner for AWS, I think it would be much more profitable if it could increase the hashing power.