ClassDo is a complete virtual classroom that gets out of the way

Founded in 2011 by Chiew Farn Chung (CEO), Edward Middleton (CTO), and Yee Whye Teh (CSO), ClassDo is an online education marketplace powered by a virtual classroom where anyone can teach and learn. Before you say “meh” and click away, give this demo link a try. ClassDo’s virtual classroom doesn’t require any software installation. Everything runs seamlessly in the browser, which is neat. It has a collaborative whiteboard that allows teachers and students to view and take notes in real time. Even the page flips are synced between student and teachers.

http://www.techinasia.com/classdo-complete-virtual-classroom/