Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
calibre - Ebook manager, viewer & converter
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
FBReader - FBReader is an e-book reader for various platforms. Features:
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.
Google Play Books - Google Play Books lets you search, preview, and buy millions of books using Google Book Search.