Design Principles - An open source repository of design principles and methods
The modern web design process - An in-depth guide to the processes behind great websites.
Product Disrupt - A design student's list of resources to learn Product Design
Another Lens - A research tool for conscientious creatives by Airbnb
Colorbox.io - Create accessible color systems 🎨
Lottie by Airbnb - Easily add high-quality animation to any native app