This is a proposal of the site Computer Science Unplugged with a series of computer knowledge to make without computer such as binary numbers, algorithms and data compression through games and puzzles that use cards, string, crayons and lots of running around.
It is easy and very fun.
I needed to do desktop sharing with one of my friend, and was looking into several desktop sharing / online meeting apps which are FREE. And I found a very good application that is quite simple and easy to setup, and this is my choice. It called Mikogo (http://www.mikogo.com).
It can by pass firewall and you don't need any static IP and it is very easy to setup a meeting.
You can have online meeting with multiple users. It allows the meeting attendees to switch to become presenter, or even the take control of the presenting computer. Oh, only one computer can be a presenter at a time. Another feature that I like, that you can choose which application that can be shared. So, you can keep all the running apps in background while you are in the meeting and not worrying that the other may peek at your mess desktop :)
The lacking is, it does not have chat, voice or video yet. Even so, I don't see that as a big problem. I just combine it with Gmail Video chat and the problem solved. I am afraid if it has the video chat, the desktop sharing will get slower, since currently I am very happy with the response time.
Take a look if you have time.
