Google has finally opened up an eBookstore, http://books.google.com/ebooks.
The Google eBookstore has been talked about for ages, (Well, maybe not ages, but at least for a year or two.) but the ebookstore only recently opened.
The site currently has 3 million books, and some of them are free. How can Google do that? Most of the free ebooks (if not all) are books that are considered to be public domain. (Reading between the lines, this means the books are old. They had to be published before 1920.) So all of the works of Charles Dickens, Jane Austen, Alexander Dumas, and other classic authors are free, if not incredibly cheap.
Current books, like Stephanie Myers' Twilight ($8.99), are more pricey. Books are available for: the Android, ipad/ipod touch/iphone, computers, and the Nook.