calibre - Ebook manager, viewer & converter
Goodreads - See what your friends are reading.
Calibre Web - Calibre Web is a web app providing a clean interface for browsing, reading and downloading eBooks...
GoodBooks.io - Largest curated collection of 8,500+ book recommendations.
Amazon Kindle - Amazon Kindle software lets you read ebooks on your Kindle, iPhone, iPad, PC, Mac, BlackBerry, and...
Bookicious - Find the best new book to read with books collections for makers, founders and entrepreneurs.