In short, what most people think of when mentioning E-Commerce is "selling and buying on the Internet". While that is for the major part true, this is only a limited perception. Online stores are actually a small part of it. Companies also provide sales information, technical data, and customer support.

So, you could say that "E-Commerce are all those online activities that facilite the exchange of goods and services between businesses and individuals, and business to business, for financial and monetary gain".

However, online sales is indeed where most of the companies hope to prosper from. Indeed, it is huge. It is growing exponentially and experts predict an ongoing and huge growth.