UI Movement - The best UI design inspiration, daily
Crazy Egg - Through Crazy Egg's heat map and scroll map reports you can get an understanding of how your visitors engage with your website so you can boost your conversion rates.
UI Garage - Specific mobile and web design patterns for your inspiration
Hotjar - The #1 Leader in Heatmaps, Recordings, Surveys & More. Sign up for a 15-day free trial and start learning from real user behavior today!
UI Sources - Mobile design patterns & interaction videos
Lucky Orange - Get into the minds of your customers by watching them navigate your site and chatting with them as they do so.