userinput.io - Get on-demand feedback for your app, website or idea. Learn how to improve by hearing real opinions.
Artsy - A global platform for discovering and collecting art.
UX Timeline - See how some of today's best companies have evolved
ArtMajeur - +1 Million original artworks, Free Shipping Worldwide, Low prices guaranteed, 14 days return: buy all the art you love on Artmajeur!
UXReality - UXReality: One App Instead of Lab
WikiArt - The Encyclopedia of Fine Art