The Whiteboard Stack was used as an alternative to a conventional whiteboard when doing demonstrations with a data projector. By starting with a blank card and using keyboard shortcuts to select different tools it was possible to scribble notes, draw diagrams, etc. Also new cards could be created at any time and you could return to older pages of notes. There was also a library of images that could be called up for any card. I used this a few times and it worked quite well but at the time it was quite hard to borrow data projectors so I stopped using it.