UI Movement - The best UI design inspiration, daily
Design Principles - An open source repository of design principles and methods
UI Garage - Specific mobile and web design patterns for your inspiration
UX Research Field Guide - Your map to the world of UX research 🌏🕵️♀️
CodeMyUI - Handpicked code snippets you can use in your web projects
Product Disrupt - A design student's list of resources to learn Product Design