Imagination Cubed

Imagination CubedOnline collaboration is fun, but it's sometimes hard to "talk through" an idea over the phone without a way to visually display it.

GE has created an online whiteboard for instantaneous screen-sharing without the need to register or create an account. Also, you don't have to wait for your friends to register either, as you can just email them to join your session.

The tool allows you to add text, change the background, add shapes, lines and stamps - it's wonderful in it's simplicity.

And when you're finished creating your online artwork (or a diagram for class), all is not lost- you can print, save, or send.

As lifehacker mentioned in their post, this site would be awesome if you have a tablet PC- as you have that whole pen functionality.