Top 10 Online eBook Stores

Amazon Kindle enable users to shop for, download, browse, and read e-books, newspapers, magazines. It provides over 1 million books in the Kindle Store. Amazon Whispersync automatically syncs your last page read, bookmarks, notes, and highlights across devices (including Kindle), so you can pick up your book where you left off on another device. Provides apps for Android, iOS, Blackberry, Windows Phone, Mac, PC and the family of ereading devices
iOSAndroidBlackberryWindows PhoneWindows PCMac OSOnline
Explore millions of choices, including over 1 million free titles. The free and easy way to access over 3 million titles across your favorite devices. Lend books to friends and family, sample them for free & more!
iOSAndroidWindows PCMac OSOnline
Amazon Books
The biggest online book store with multiple book reviews
Apple iBooks
iOS reading app + book store: Both a way to read books and a way to buy them, iBooks transforms the simple act of reading into something simply delightful. The iBookstore features the best of what’s new right at the top of the page. Flick from page to page. Change text size. Select a different font. Adjust the brightness.
Browse and shop over 2.5 million eBooks including new releases, NYT® bestsellers, and 1 million free titles. Automatically syncs your library across all your devices including iPad, iPhone, Android, Mac, PC, BlackBerry PlayBook and smartphones, and all Kobo eReaders. Choose from multiple font sizes and styles, plus read in day or night mode.
iOSAndroidBlackberryWindows PCMac OSOnline
Google Play Books
Choose from millions of titles on Google Play including new releases, New York Times best sellers, up-and-coming authors, and free books. Easily personalize your reading experience, pick up where you left off on your phone, tablet, or computer, and get reading today
International ebook store with local stores in 18 countries. Provides reading apps for iOS, Android, PC (up to Windows 7), Mac and Windows 8. The apps are synced in the cloud, allowing users to keep their reading position, bookmarks, notes, etc. when they switch from one device to another. It also provides own ereader device - Txtr Beagle.
iOSAndroidWindows PCMac OSOnline
Blio is a feature-rich eReading application that allows you to go beyond the written word. Experience books through the eyes of the author, with crystal clear sound and images that come alive in brilliant color.
iOSAndroidWindows PC
Ever wish your textbook could create flashcards automatically for you? Wish you could get the "A" students' notes directly in your textbook? Wish you could search for answers in your book instantly? Or watch videos and bring external content directly into your book? Wish no more. With over 70 features, Kno goes to work for you.
Scribd is the world's largest digital library, where readers can discover books and written works of all kinds on the Web or any mobile device and publishers and authors can find a voracious audience for their work. Launched in March of 2007 and based in San Francisco California, more than 40 million books and documents have been contributed to Scribd by the community. Scribd content reaches and audience of 80 million people around the world every month.

Total Boox
Total Boox is building a new platform for ebook distribution and consumption. A reader does not have to purchase a book upfront. He downloads the book into his tablet device, and pays for the portion he actually reads, when he reads it. This revolutionary concept improves reader-book matching, and creates significant unique advantages to readers, publishers and authors.
Oyster offers unlimited access to over 100,000 books for $9.95 a month, with new titles added all the time. We are currently rolling out invitations for iPhone and iPod Touch. We created Oyster to evolve the way people read and to create more of the special moments that only books can offer. From anywhere a mobile device can go—a bustling subway car, a quiet coffee shop, or lost at sea with a Bengal tiger—our mission is to build the best reading experience, one that is both communal and personal, anytime, anywhere.
BookBub alerts you to limited-time free and discounted ebooks matching your interests. Discover free and discounted bestselling ebooks for Kindle, iPad, Nook & more. We do the work for you. Our expert editorial team sifts through thousands of ebooks, selecting only the highest quality to feature.
BookGorilla sends you a single daily email alert with the best deals on Kindle books that match your reading preferences, including bestsellers and freebies. Imagine a single daily email, tailored to your personal reading preferences, featuring the best deals on the best Kindle ebooks, either completely free or at deeply discounted bargain prices.
RosettaBooks is the leading independent eBook publisher, annually selling over 1,000,000 eBooks worldwide. RosettaBooks App features include curated eBook suggestions, sample chapters, user engagement platform and weekly updates on free eBooks, giveaways and discounted titles.
Reading has never been more convenient. With a Bookmate subscription you can read thousands of books using a simple application for mobile or tablet, or on your computer. Read, build your own library, see what your friends are reading, explore everything which Bookmate has to offer!
BitLit is an app that lets you get an eBook, for a print book you already own, for free or at a discounted price. Once you've downloaded your eBook, you can read it on any of your eReading devices: Kobo, Nook, Kindle, iPad, or even on your smartphone.
Glose is a reading platform for inspired readers who want to share their thoughts through ebooks. It’s like an online bookclub that makes it more fun and social to read. Available on desktops, smartphones and tablets, both iOS and Android.
Txtr Beagle
Txtr Beagle Has Been Discontinued! If you just want to read text and you can live without a touchscreen, 3G, a backlight and Wi-Fi — and you don’t mind inserting three AAA batteries once a year — this 5-inch, 4.5-oz E Ink device with its 800×600 screen might be the e-reader for you. The Txtr Beagle’s 4GB of storage will give you room for a boatload of books, and its 5mm thickness is almost razor-thin enough to give you a paper cut.
Sony Reader app
Sony Reader is discontinued! Content moved to Kobo! Access all your favorite eBooks, Newspapers and Magazines from Sony Reader Store. Sync your Reader Store content across your PCs, Macs and Android devices. Borrow books from your local library.
AndroidWindows PCMac OS