Slides - Slides is a place for creating, presenting and sharing presentations. The Slides editor is available right in your browser. Unlike traditional presentation software, like PowerPoint, there's no need to download anything.
DisplayFusion - DisplayFusion will make your multi-monitor life much easier.
Slidebean - Presentations that design themselves
Mizage Divvy - Divvy is an entirely new way of managing your workspace.
Prezi - Welcome to Prezi, the presentation software that uses motion, zoom, and spatial relationships to bring your ideas to life and make you a great presenter.
WindowGrid - Quickly and easily layout windows on a dynamic grid using just the mouse.