After the incidences experienced by reddit (http://blog.reddit.com/2011/03/why-reddit-was-down-for-6-of-last-24.html) related to the reliability of EBD I'm wondering what are alternatives and which one do you have experience with/recommend. Maybe it's just EBD that has to be avoided?(I've used AWS for some batch work but never for hosting a webapp, but now I was planning to use it for hosting a webapp (either directly or via heroku))