OneNote - Get the OneNote app for free on your tablet, phone, and computer, so you can capture your ideas and to-do lists in one place wherever you are. Or try OneNote with Office for free.
calibre - Ebook manager, viewer & converter
Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.
FBReader - FBReader is an e-book reader for various platforms. Features:
Laverna - Laverna is a JavaScript note taking application with Markdown editor and encryption support.
Google Play Books - Google Play Books lets you search, preview, and buy millions of books using Google Book Search.