OpenBoard - The OpenBoard software is an interactive white board software.
Sketchboard.io - Visual Remote Teamwork. Solve problems and create ideas on endless whiteboard with your teammates by sketching.
Surface Studio - A brilliant screen for your ideas, from Microsoft
Draw.Chat - Anonymous real-time whiteboard with text and video chat.
Twiddla - Mark up websites, graphics, and photos, or start brainstorming on a blank canvas.
Miro - Scalable, secure, cross-device and enterprise-ready team collaboration tool for distributed teams. Join 2M+ users & 8000+ teams from around the world.