Amazon e-books now outselling print books

Last Thursday, Amazon announced that their buyers are now buying more e-books for the kindle, than all their print books. Since people have been using technology more, this would naturally happen but this still shocked Amazon. Amazon released its Kindle in November of 2007. Although this only applies to all the books and e-books sold on Amazon, it is still shocking that the sales have been rising so quickly.

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When i store documents, pictures, videos, and other files, i organize them in a nonhierarchical way.
A tag is a nonhierarchical ladel or keyword.
Social bookmarking is a way to organize data online.