Requirements:

• Command-line access
• *NIX

Nice to have's:

• full root access
• long running processes
  • node.js

Suggested options:

• Self-hosted
• https://www.dotcloud.com/ (allows for node.js hosting that opens up SFW, etherpad, etc)
• https://www.heroku.com/
• https://www.linode.com/
• https://www.openshift.com/ (Red Hat)
• https://www.digitalocean.com/
• http://www.ramnode.com/index.php