You've no doubt experienced the power of movies. More recently, I've been fascinated by other dimension of video that's being exploited less in movies and more in YouTube is how-to videos and talent sharing.
In 2010, I experienced this first hand--I dove head first into the world of make-up by watching online tutorials (Michelle Phann & Kandee Johnson). I learned enough to do my own wedding makeup.
I'm not alone. Chris Anderson, curator of TED, speaks of many other examples of the power of video to fuel learning and innovation. Given our innate love for storytelling and our visual nature, why wouldn't we gravitate towards watching? Access to new communication channels has clearly shown that the medium strongly impacts the message. **
Another bonus to this video is a demonstration of the presentation tool, Prezi. For how much people complain about how much PowerPoint sucks (Tufte and many many others), I'm glad someone created an alternative.
**Some say the medium IS the message. False. If this were true logically, everything on YouTube should be the same since they share mediums. (Dwight from the Office voice used here)