Whoahhh imaginationcubed.com !
http://www.imaginationcubed.com is a kind of flash based online whiteboard which can be use in realtime to draw or send or save flash base drwanings. You can invite some colleagues for drawning together an idea by email, or AOL instant messaging. predefined shapes, grid, different brushes and a realistic pen let You draw very complicated ideas. Fun, beautiful, useful! Let’s meet there if You have any question 🙂