Heroku | Ruby Cloud Platform as a Service - also quite interesting: a Ruby service that enables easy website hosting in Ruby within a cloud structure. In principle, something like Google App Engine, but with Ruby. The approach is quite interesting, you generate a base app and then pull it to your own computer with Git, change and update with Git. There are various addons and plugins that you can use, Rails is of course also supported. And since you keep your app as a normal Ruby app locally, you are also relatively independent of the provider and can switch to self-hosting if necessary.