calibre - Ebook manager, viewer & converter
CoSell - Unlock revenue through your exclusive network purpose-built for referrals and relationship-selling.
FBReader - FBReader is an e-book reader for various platforms. Features:
Intrro - Intrro is productizing the ability to learn who are the top performers in your company’s network—so you can hire more from recommendations.
Google Play Books - Google Play Books lets you search, preview, and buy millions of books using Google Book Search.
about.me for Slack - Create a visual team directory for introductions