AIFE for Virtual Reality - Launch a Virtual Reality experience (and more) in 60 seconds
JavaScript.com - A free resource for learning and developing in JavaScript
WebVR Experiments by Google - Easily build and share VR experiences on the web!
A.I. Experiments by Google - Explore machine learning by playing w/ pics, music, and more
Pictarize - Building and deploying web augmented reality applications
BundlePhobia - Find the performance impact of adding a npm package to your bundle.