Prezi Adds Live Collaboration to its Presentations
Prezi lets you build a multidimensional PowerPoint all on one slide so that you merely need to move the screen up, down, left, right, etc. Here is a student presentation of the Constitutional Convention that includes, pictures, video, graphics, links and even a worksheet all on one slide. Press the arrow to go to each part. Above is a video describing how you can create a Prezi PowerPoint with other people on other computers anywhere in the world at the same time - much as you can do with Google Docs.