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.
Collaboration by Instapage - Landing page design collaboration for marketing teams
SlidesPPT - Beautiful free presentation templates for Google Slides
Macaw - Macaw: The Code-Savvy Web Design Tool
WebSlides - Easily create great-looking HTML presentations.
Ludus - Limitless creativity for your slides.