The following are three PHP scripts for creating and maintaining web-based Frequently Asked Questions (FAQs) systems. They are all free of charge and can use MySQL as database in the backend. I also try to google them to see if there are any example websites that make a good use of them.

The three he mentions are:

• phpMyFAQ
• ODFaq
• Lethal Penguin's FAQMasterFlex

He briefly describes each, noting a few of the sites that use each under them. He doesn't really recommend one over the other, however - again a "right tool for the right job" situation. Each has its own strengths that can play well with what your needs might be.