PresentzPresentz is a mashup, as it merges things like Vimeo, Youtube, and Slideshare. But you can use images and video files as well, unleashing the HTML5 video tag power. Presentz wants to be easy to use: watch a talk, comment it, and share it. Take a look at the featured talks: the demos are just below, the others are in the talks section. Last but not least, Presentz is opensource. Check out our git r
