EC2 is not suitable for most Web applications: - You don't get a static IP address, so if your instance fails and needs to reboot, you might end up with a diff

EC2 is not suitable for most Web applications: - You don't get a static IP address, so if your instance fails and needs to reboot, you might end up with a different IP address. - If your instance fails, it also loses all the data stored in it. - There is no hardware load balancing. With that said, you can probably use it to complement your other servers by doing some of the batch processing.