UI Movement - The best UI design inspiration, daily
Draw.Chat - Anonymous real-time whiteboard with text and video chat.
Muzli - UI/UX and Design Inspiration Chrome Extension
Limnu - Sketch, share and collaborate with your team
UI Jar - Hand-picked design inspiration for your real life projects
Sketchboard.io - Visual Remote Teamwork. Solve problems and create ideas on endless whiteboard with your teammates by sketching.