Where do I find a free php script or software to create a online tutorial?

Where do I find a free php script or software to create a online tutorial

Where do I find a free php script or software to create a online tutorial?
Do you have an example of how you want this tutorial to function? there is Camtasia by www.techsmith.com that will help you create a demonstration using your own computer or there are some scripts at http://sourceforge.net/index.php
Reply:Try looking at http://php.resourceindex.com they have a lot of php scripts and software