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.
schnaq - Create an engaged and interactive audience with the schnaq Q&A, polls and more.
Mentimeter - a web-based polling tool for workshops, conferences & events
Pingo - Optimize images for the web quickly 🖼️⚡
DeckRobot for PowerPoint - Make your slides shine with one click ✨
Presentii - Imagine a tool that lets you capture audience interest in your presentation content as you present.