I plan to create a web-based screen sharing using flash for my project. I would really appreciate if anyone could introduce me a good tutorial ...

Project description.

The system is suppose to allow user to view the host screen(desktop) and see what the host is doing (not remote desktop).

Thanks in advanced

Good tutorial, eh? I don't know, but I visited these three sites when I need something. They also have downloaded source flas, movies, and forums.