Abstract
Since the 90's, Internet does not stop developing. Today, the majority of the population is connected. More devices are able to connect to the Internet and the computer is not essential any more. The ubiquity of the web generated new trends and the possibility of purchasing directly on-line is a part of it (Holton, 2009). The purchase of a television or shoes has considerably evolved in ten years. Now, you do not need to move to compare and buy products, thanks to the Internet access and a bank card, now everything is possible on-line wherever you are.
Here is a definition of E-Commerce:
"E-commerce is a modern business methodology that addresses the needs of organizations, merchants, and consumers to cut costs while improving the quality of goods and services and increasing the speed of service delivery, by using Internet" (Goel, 2007)
The amount of Web sites specialized in the e-commerce is constantly increasing. No matter what you are looking for, everything is on the Internet. Amazon or eBay, although proposing a different system of sale, stay among the most known web sites. All these web sites are putting together three big categories:
-B to C: or Business to Consumer. Currently, they are the most frequent web sites (i.e.: Amazon).
-C to C: or Consumer to Consumer. They are very fashionable, because cheaper for the consumer. It's a good way to buy and/or sell products easily on Internet (i.e.: Gumtree).
-B to B: or Business to Business. They represent a niche and are less known from the general public. The sale prices are often more expensive and the services are more adapted to the companies (i.e.: Misco).
