EtherPad : Etherpad is an Open Source online editor providing collaborative editing in really real-time powered by Node.js
RegExr : RegExr is an online tool to learn, build, & test Regular Expressions (RegEx / RegExp).
MUTE : Web-based text editing tool that allows to edit documents collaboratively in real-time. It implements a CRDT-based consistency maintenance algorithm f...
Teletype for Atom : Teletype for Atom lets developers share their workspace with team members and collaborate on code in real time.
Mind42 : Collaborative mind mapping in your browser
A better way to conduct remote interviews
WebRTC based video chat + code editor = Awesome interviews
