Zoop is a (yet to be released) multi-user collaborative whiteboard. Zoop is realtime drawing, file-sharing, video-sharing, screen-sharing and instant messaging. Zoop comes in two flavors: headless P2P for users who desire privacy, and server backed for automatic syncing in professional environments. Zoop makes it easy to stay in the loop.
Zoop combines the most useful tools in Sketchpad [https://sketch.io/sketchpad] with the powers of WebRTC. WebRTC is arguably the most game-changing of recently available web technologies. WebRTC allows users to connect directly to each-other, or chain together multiple users creating a peer mesh network. The means less bandwidth usage, but also improves throughput speeds. WebRTC is one vital weapon in the fight for net-neutrality.