VCASMO - VCASMO is a multimedia presentation solution for photo and video slide shows, business presentations, training, academic teaching, sales pitches, and seminars.
DocSlide - DocSlide is an online document and knowledge sharing platform.
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.
Scribd - Unlimited books, audiobooks & comics. Unparalleled discovery. Any device. $8.99/month
Zentation - Affordable webinar software. Create online presentations with synchronized video and PowerPoint.