VCASMO - VCASMO is a multimedia presentation solution for photo and video slide shows, business presentations, training, academic teaching, sales pitches, and seminars.
SlideShare - Discover, Share, and Present presentations and infographics with the world’s largest professional content sharing community.
projeqt - With Projeqt, your presentations never remain static. Pull in live tweets or blog feeds, insert an interactive map, add audio notes or stream videos. Let your presentations be as dynamic as you are.
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.
Zentation - Affordable webinar software. Create online presentations with synchronized video and PowerPoint.
PowerShow - PowerShow is an online presentation software solution that allows you to view and share PowerPoint presentations online with embedded video, audio, image, music, and animations, etc.