Draw.Chat - Anonymous real-time whiteboard with text and video chat.
Prezi - Welcome to Prezi, the presentation software that uses motion, zoom, and spatial relationships to bring your ideas to life and make you a great presenter.
MultiDraw - Draw with others in real time.
Google Slides - Create a new presentation and edit it with others at the same time — from your computer, phone or tablet. Free with a Google account.
Animaker Whiteboard - A whiteboard video making tool with 10,000+ drawings 🖊
Keynote - Keynote for Mac, iOS, and iCloud lets you make dazzling presentations. Anyone can collaborate — even on a PC. And it’s compatible with Apple Pencil.