Everyone has FAQ's

Here's how I use it as a sales tool

Watch this video and do it for your business
http://www.caseygollan.com.au/newsletter/may09/faqexample.html

Here's an example from another website www.zipp.com

On their support page they have both video and text:
http://www.zipp.com/support/faq/faq.php

Then they have a link to this page for all the video faqs:
http://www.zipp.com/support/faq/more_videos.php

Here's how Luke Simon did it:
http://lukesimonphotography.com/blog/the-wedding-process/

Here is another example on the Garmin site
http://www8.garmin.com/learningcenter/training/edge705/index.html

And another on the home pages
http://www.lifestylesunlimited.com/
http://www.executivespeaking.com.au/faq/

Here's how Webber BBQ's do it:
http://www.weberbbq.com.au/Videos.php