Codassium : A better way to conduct remote interviews
WebRTC based video chat + code editor = Awesome interviews
Firepad : Firepad is an open-source, collaborative code and text editor. It is designed to be embedded inside larger web applications.
Mockingbird : Mockingbird is an online tool that makes it easy for you to create, link together, preview, and share mockups of your website or application.
Bitsy : Bitsy is a little editor for little games or worlds. The goal is to make it easy to make games where you can walk around and talk to people and be som...
Query Mongo : Convert MySQL Queries to MongoDB Syntax
Etherpad is an Open Source online editor providing collaborative editing in really real-time powered by Node.js