Limnu - Sketch, share and collaborate with your team
OpenBoard - The OpenBoard software is an interactive white board software.
Draw.Chat - Anonymous real-time whiteboard with text and video chat.
Surface Studio - A brilliant screen for your ideas, from Microsoft
Sketchboard.io - Visual Remote Teamwork. Solve problems and create ideas on endless whiteboard with your teammates by sketching.
Twiddla - Mark up websites, graphics, and photos, or start brainstorming on a blank canvas.