PreZentit - Prezentit is an online presentation solution based on JavaScript that comes with new online collaboration tools.
Quizzes for Pages - Quizzes for Pages is an application to create and share quizzes on your Facebook Page.
authorSTREAM - authorSTREAM enables presenters to upload & share PowerPoint, Keynote & PDF presentations online; embed in blogs, convert to video and share on social networks.
Outgrow - Enabling marketers boost conversion with interactive, beautiful & viral quizzes/calculators.
Present.me - Present.me - the video presentation platform. Share all your presentation content in one place. Slides, slides and audio, slides and video or just video. No software to install, all you need is your slides, a webcam and YOU!
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.