ezmobius is awesome, but be careful with engineyard I've known several startups that got burned but lots of downtime and performance issues. Many times their

ezmobius is awesome, but be careful with engineyard I've known several startups that got burned but lots of downtime and performance issues. Many times their sites were taken down due to either system issues or other customers impacting their database (mysql cluster is shared), filesystem (shared gfs), or load balancer. A couple friends' companies have left - after a week of downtime every day. A couple are still there, and are still impacted regularly. On the plus side the people at EY are really smart - and they have made it so the companies have to know almost nothing about how to run a rails site. (capistrano, mysql cluster, mongrel setup, load balancing, shared filesystem is handled for you - that is what you are paying for) They have a public status blog at: http://engineyard.wordpress.com/ You can read through the issues that the clusters EY0# have had. I think EY will improve in time, but they have issues currently that make it not quite the "sure bet" that it will be.