We can define CoSketch as a platform for collaborative drawing. It will let you gather a good couple of friends around, and either have fun together by illustrating anything you fancy such as the latest victory of your team over its arch rivals or (if you think you are already too old to do something like that) let your kids use the application and have some good-natured fun with their friends.
In actuality, there is no reason why this platform could not be used by people who are working together as part of the same team, and who need to do some brainstorming. By using CoSketch, they will be able to set everything down in a way that will certainly be much quicker than sending emails back and forth, or even talking down the phone.
CoSketch can be used for free, and it runs on just any browser. And note that a pro version of the service is being developed right now. It will come with greater accessibility options.
CoSketch.com In Their Own Words
CoSketch is a multi-user online whiteboard designed to give you the ability to quickly visualize and share your ideas as images.
Why CoSketch.com It Might Be A Killer
Such an application will let you have a good time with your friends, and also collaborate with your colleagues in a relaxed way.
Some Questions About CoSketch.com
Is there a limit to how many people can collaborate at once? 
