Scribd - Unlimited books, audiobooks & comics. Unparalleled discovery. Any device. $8.99/month
calibre - Ebook manager, viewer & converter
SlideShare - Discover, Share, and Present presentations and infographics with the world’s largest professional content sharing community.
Amazon Kindle - Amazon Kindle software lets you read ebooks on your Kindle, iPhone, iPad, PC, Mac, BlackBerry, and...
Issuu - Issuu is the leading digital publishing platform delivering exceptional reading experiences of magazines, catalogs, and newspapers.
FBReader - FBReader is an e-book reader for various platforms. Features: