I was recently at a conference, and was blown away by several presentations I watched by two presenters. I asked one of them afterward, and she told me she had used the web service called Prezi to produce the presentations. Below is the first presentation I made using Prezi. Without the benefit of our narration, you may not get much content out of the presentation, but you can see how the presentation looks and feels.
The second thing that makes Prezi amazing is its professional look and feel when presenting. When you create a path throughout your canvas, Prezi automatically zooms and rotates the view as necessary to focus on whatever you want to show your audience. The result is a wonderfully polished presentation. It takes much less effort to create a beautiful presentation than it would with Powerpoint.
Because of the ease of creating engaging presentations that don't oversimplify complicated issues, I would love to see more people using this web service. Try it out!