VCASMO - VCASMO is a multimedia presentation solution for photo and video slide shows, business presentations, training, academic teaching, sales pitches, and seminars.
DocDroid - DocDroid is a service for sharing document and slides.
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.
DocSlide - DocSlide is an online document and knowledge sharing platform.
Zentation - Affordable webinar software. Create online presentations with synchronized video and PowerPoint.