GOT Spoilers - Send GOT Spoilers via SMS
Kahoot! - Kahoot! makes it easy to create, play and share fun learning games in minutes—for any subject, in any language, on any device.
Quartermaester - Interactive Game of Thrones map
Mentimeter - a web-based polling tool for workshops, conferences & events
Star Wars Spoiler Blocker - Chrome extension that warns about Star Wars spoilers
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.