UI Movement - The best UI design inspiration, daily
Anima App - Design, get feedback, convert to code, publish, iterate.
Daily UX Challenge - Improve your UX skills with a challenge posted each day 🛠️
Sketch Repo - Collection of resources for anyone who uses Sketch
UI Sources - Mobile design patterns & interaction videos
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.