[newmanships]

If they don't check out https://www.nitrous.io/ - Similar to Cloud9 and was huge for me when I started learning.

[junker101]

Also worth a look depending on your needs: https://codenvy.com/ (based on open source eclipse che IDE) http://www.koding.com/ (easy hybrid local IDE and/or cloud IDE integration)

[ivan_burazin]

Congrats to the c9 team, but if you have a chance would love if you would take a look at https://codeanywhere.com