What are some alternatives?
DigitalOcean - Simplifying cloud hosting. Deploy an SSD cloud server in 55 seconds.
Google App Engine - A powerful platform to build web and mobile apps that scale automatically.
Microsoft Azure - Windows Azure and SQL Azure enable you to build, host and scale applications in Microsoft datacenters.
Heroku - Agile deployment platform for Ruby, Node.js, Clojure, Java, Python, and Scala. Setup takes only minutes and deploys are instant through git. Leave tedious server maintenance to Heroku and focus on your code.
Linode - Deploy and Manage Linux Virtual Servers in the Linode Cloud. Get a server running in minutes with your choice of Linux distro, resources, and node location.
Dokku - Docker powered mini-Heroku in around 100 lines of Bash