calibre - Ebook manager, viewer & converter
DocDroid - DocDroid is a service for sharing document and slides.
FBReader - FBReader is an e-book reader for various platforms. Features:
Phoesion Glow - Phoesion Glow simplifies the creation, deployment and managing of dotnet microservices, making it easy for developers of all skill levels to build and maintain complex applications.
Google Play Books - Google Play Books lets you search, preview, and buy millions of books using Google Book Search.
SlideOnline - Share PPT presentations online easily with a free PowerPoint presentation sharing platform