List of markdown presentation tools
gnab/remark: A simple, in-browser, markdown-driven slideshow tool.
FormidableLabs/spectacle: ReactJS based Presentation Library
deckjs/deck: Deck is a markdown driven content presentation system
Slides.com: Online UI for creating RevealJS decks (no markdown support yet, but maybe someday)
Platon.io: Simple markdown presentations, right in the browser, using remarkjs
Swipe: Create Interactive Online Presentations On Any Device