Slidebean - Presentations that design themselves
Ludus - Limitless creativity for your slides.
Deckset - Turn your notes into beautiful presentations
SlideLizard - Powerpoint plug-in for live audience interaction
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.
Zeetings - Turn your presentations into interactive conversations