Mikogo is free net meeting software. You invite people by e-mail to join a meeting, and they can view your screen or control your screen if you choose. They have also partnered with Skype. Do you have something you need to share with a parent or teacher but just can not get together in real time? Why not go virtual? This free site is easy to use and free to install. Enjoy!
Mikogo User Guide: http://www.mikogo.com/en/downloads/docs/mikogo-user-guide.pdf