Electronic commerce, commonly known as e-commerce or eCommerce, consists of the buying and selling of products or services over electronic systems such as the Internet and other ...
http://en.wikipedia.org/wiki/Electronic_commerce

Subcategories. This category has the following 12 subcategories, out of 17 total.
http://en.wikipedia.org/wiki/Category:Electronic_commerce

This page describes the term electronic commerce and lists other pages on the Web where you can find additional information.
http://www.webopedia.com/TERM/E/electronic_commerce.html

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