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.
PowerSchool - PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
Sli.do - Slido is the ultimate Q&A and polling platform for live and virtual meetings and events. It offers interactive Q&A, live polls and insights about your audience.
Clever - syncing between education applications for K-12 schools
Glisser - Glisser makes presentations interactive – it takes regular PowerPoint, Keynote or PDF slide decks and pushes them out live to audience mobile devices. Your audience can then interact with the presenter with via polls, Q&A, voting and much more.
Claroline - Claroline is a collaborative eLearning and eWorking platform.