Whiteboard
This is my hobby project. In this I am using modified version of wwwsqldesigner(v1.6) of ondrej.zara.
I have written this application as I wanted to learn and experiment with Node.JS, socket.io and mongodb.
You can see demo of this on http://bharat.whiteboard.jit.su
There are many modifications in wwwsqldesigner.js file. I will update them shortly.