OpenBoard - The OpenBoard software is an interactive white board software.
NoteBookCast - A real time shared whiteboard in your browser, teach, explain, sketch. For work, study, fun.
Conceptboard - Instant Whiteboards for Teams & Projects
IDroo - A shared whiteboard for use by multiple Skype-users simultaneously. Features
Haiku Deck - Presentation Software that Inspires | Haiku Deck
Microsoft Whiteboard - The canvas where ideas, content, & people come together.