Codassium : A better way to conduct remote interviews
WebRTC based video chat + code editor = Awesome interviews
Maqetta : Maqetta is an open source project that provides WYSIWYG visual authoring of HTML5 user interfaces. The Maqetta application itself is authored in HTML,...
EtherPad : Etherpad is an Open Source online editor providing collaborative editing in really real-time powered by Node.js
Mind42 : Collaborative mind mapping in your browser
