HTTP Archive : The HTTP Archive tracks how the Web is built.
EtherPad : Etherpad is an Open Source online editor providing collaborative editing in really real-time powered by Node.js
WebPlatform.org : Web Platform Docs is a community-driven site that aims to become a comprehensive and authoritative source for web developer documentation.
Eloquent JavaScript : Eloquent JavaScript is a book providing an introduction to the JavaScript programming language and programming in general.
MindMeister : MindMeister is an online mind mapping tool that lets you capture, develop and share ideas visually.