The folks at JVitals have once again raised the bar on "cool" and "useful" - previously with agora now with this.
I found it to be easy to use, very powerful and quite frankly likely will find its way into our next product release website!
One of my favorite parts is the well designed 'speech' bubble. I can have video testimonials, audio and of course text.
If you are in business, you need to go ahead and get this right now, install it and start collecting those "good as gold" testimonials from your customers.