Mixbook - Mixbook is an online photo design tool and product service that allows customers to design customized photo books, cards, calendars, and photo prints through its online interface.

DocDroid - DocDroid is a service for sharing document and slides.

SlideBoom - Upload and Share PowerPoint presentations with your family, friends, colleagues, clients and the whole world

SlideShare - Discover, Share, and Present presentations and infographics with the world’s largest professional content sharing community.

Bitstrips - Bitstrips is fun and engaging app that lets you create your own comic strips right from your mobile device. It's essentially a social network that allows its users to share self-made comics as opposed to photos, memes, videos, or other posts.

SlideOnline - Share PPT presentations online easily with a free PowerPoint presentation sharing platform