DocDroid - DocDroid is a service for sharing document and slides.
Draftsend - Presentations you can 👀 and 👂
SlideShare - Discover, Share, and Present presentations and infographics with the world’s largest professional content sharing community.
Slidebean - Presentations that design themselves
Scribd - Unlimited books, audiobooks & comics. Unparalleled discovery. Any device. $8.99/month
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.