Storyly - Bring superb stories to your app
calibre - Ebook manager, viewer & converter
Zuck.js - JavaScript library that lets you add Stories everywhere
FBReader - FBReader is an e-book reader for various platforms. Features:
Stories as a Service - Add stories to your website with 1 line of code
Google Play Books - Google Play Books lets you search, preview, and buy millions of books using Google Book Search.