Make zooming presentations from posters, with Sozi
Sozi is a free and powerful that will help you make presentation in a unique way you may find very interesting.
If you are familiar with Microsoft Powerpoint you expect from a program that makes presentations to use a series of slides. This is not the case with this one.
Sozi takes a poster you can create and lets use layers and timelines to focus to certain parts of your poster even using transition effects, rotations, etc.
Sozi breathes life into a poster, it lets you present your poster not all at once but following a narration that uses parts of it, introducing them in impressive ways. If you make presentations, Sozi is a nice and free program you may like to try.