An increasingly popular visual presentation tool (15 million users and counting, according to company reps), Prezi takes a different approach than programs like Microsoft PowerPoint. Instead of linear slides, prezis (the company's name for its presentation format) run along paths that zoom the focus to a series of points in the prezi as you click the Next button. From the opening screen of your prezi, you might move up, down, left or right across the prezi's canvas to show more info.
Prezi is a cloud-based Web service; prices range from free to $159/year for the top-end Pro license, which includes desktop software for offline presentations. Version 4.1.1 came out in late 2012 with a revamped interface and added features.