Everything Amazon has to offer.....
In addition to selling physical media like CDs, DVDs and books, it sells digital copies of these products as well. Amazon Unbox, which lets customers download movies and TV shows to their computers and certain TiVo boxes, opened in the fall of 2006.
In September 2007, the company rolled out its Amazon MP3 store, a rival to Apple's iTunes that makes downloadable music available without the cumbersome anti-copying software called D.R.M., or digital rights management. The service now has the participation of all the major music labels.
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Amazon has also positioned itself as a technology company through a fledgling effort called Amazon Web services, in which it rents out parts of its back-end infrastructure to other companies.
Among the tools it offers was Amazon S3, which let companies store their data on Amazon's computers, and Amazon EC2, which let customers use Amazon's computers for large-scale computational tasks.
July 19, 2010 was a day for the history books — if those will even exist in the future. Amazon announced that during the previous three months, sales of books for the Kindle had for the first time outnumbered sales of hardcover books.
In that time, Amazon said, it sold 143 Kindle books for every 100 hardcover books, including hardcovers for which there is no Kindle edition.