Teleprompt.me - The only web-based voice controlled teleprompter!
Slidebean - Presentations that design themselves
Words to Time - Calculates how long a talk will take to read.
SlidesPPT - Beautiful free presentation templates for Google Slides
Video Teleprompter - A teleprompter app for iPhone/iPad, with built in camera
Slides - Slides is a place for creating, presenting and sharing presentations. The Slides editor is available right in your browser. Unlike traditional presentation software, like PowerPoint, there's no need to download anything.