Google Play Books - Google Play Books lets you search, preview, and buy millions of books using Google Book Search.
Standard Ebooks - Online library of downloadable e-books that focuses on quality and modern standards in typography.
Amazon Kindle - Amazon Kindle software lets you read ebooks on your Kindle, iPhone, iPad, PC, Mac, BlackBerry, and...
Bookmate - An easy way to read, listen to, and discuss books and comic books
Open Culture - Discover thousands of free online courses, audio books, movies, textbooks, eBooks, language lessons, and more.
Archive.org - Internet Archive is a non-profit digital library offering free universal access to books, movies...