You can host your own Cloud9 online editor on any node based platform. This way it works way cost effective than off the shelf service providers such as C9, Koding, Codeanywhere.com etc.
I just created a 1GB VM with digitalocean.com for $10/month.
git clone https://github.com/c9/core.git c9sdk
cd c9sdk
./scripts/install-sdk.sh
You can run the install-sdk.sh script also to update the SDK to the latest version.
Running:
Start Cloud9 in the SDK as follows:
./server.js -p 8080 -l 0.0.0.0 -a :
The following options can be used:
--settings Settings file to use
--help Show command line options.
-t Start in test mode
-k Kill tmux server in test mode
-b Start the bridge server - to receive commands from the cli [default: false]
-w Workspace directory
--port Port
--debug Turn debugging on
--listen IP address of the server
--readonly Run in read only mode
--packed Whether to use the packed version.
--auth Basic Auth username:password
--collab Whether to enable collab.
--no-cache Don't use the cached version of CSS