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.
wikiHow - wikiHow is a wiki based collaboration to build the world’s largest, highest quality how to manual.
Hypersay - We Create Innovative Technology for Events! Do more with less! Wide range of premium features to fit your event’s needs
Blurtit - Blurtit is a Q&A website. You can ask a question or answer on any question.
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.
AllAnswered - Your Team's Collective Brain All-In-One Knowledge Management System Wiki + Q&A + Workflow + AI