Scribd - Unlimited books, audiobooks & comics. Unparalleled discovery. Any device. $8.99/month
Google Play Books - Google Play Books lets you search, preview, and buy millions of books using Google Book Search.
Prezi - Welcome to Prezi, the presentation software that uses motion, zoom, and spatial relationships to bring your ideas to life and make you a great presenter.
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.
LibriVox - free public domain audiobooks