eWebinar - Turn any video into an interactive, automated webinar
Zeetings - Turn your presentations into interactive conversations
Poll Everywhere - Audience response system that uses mobile phones, twitter, and the web. Responses are displayed in real-time on gorgeous charts in PowerPoint, Keynote, or web browser.
Crowd Mics - Crowd Mics provides solutions to turn phones into microphones for live events to boost audience interaction.
TwentyThree Webinars - A webinar tool you can finally love
SlideShare - Discover, Share, and Present presentations and infographics with the world’s largest professional content sharing community.