Robin Good: Idroo is a real-time collaborative whiteboard (for Windows PCs only) that allows 10 or more people to annotate, highight, draw and markup over any image they want to.
Idroo integrates perfectly with Skype allowing you to invite through Skype your meeting attendants and to talk to them while working together on the shared whiteboard.
Key features include:
FREE for non-commercial use 10 or more simultaneous participants Vector drawing tools Import images Skype integration Supports digital tablets (such as Wacom)
Download (Windows only): http://www.idroo.com/download
Getting started guide: http://www.idroo.com/documentation/inviting-users
Find out more: http://www.idroo.com/
Via Robin Good, juandoming