Presentii - Imagine a tool that lets you capture audience interest in your presentation content as you present.
Charts Factory - Create simple charts super fast and for free!
Pingo - Optimize images for the web quickly 🖼️⚡
ZingChart - ZingChart is a fast, modern, powerful JavaScript charting library for building animated, interactive charts and graphs. Bring on the big data!
Imakiku - Imakiku is an audience response system for real-time voting, posting comments, and surveying.
Google Charts - Interactive charts for browsers and mobile devices.