What tools are you using on your site to demo it?<p>Screencast? Video? Animation?
Stills?
Just text?<p>A combination of all of those?<p>What is most effective for you?
I am still pre-beta so I am showing the application in person or using GoToMeeting to potential customers. I have setup the more serious ones account to try out and use (but not in production).
you could probably make a cool demo just using camtasia. there's a 30-day free trial. it's a pretty good combination of screencast, voice, effects / production, text and is good for a first version. not sure what the best tool is..