E-commerce consists of any kind of economic transaction or buying and selling of products or services via Internet and other telecommunications networks, both between the Administration and businesses and consumers, and between the latter two. Today, a considerable volume of e-commerce consists of the acquisition of online goods.

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What is e-commerce?

Some tools to define and understand e-commerce.

This page on the Statista platform provides up-to-date charts and reports on e-commerce by country.
Comercio electrónico - Wikipedia
E-commerce on Wikipedia in English.
Terminologia del comerç electrònic - Termcat
Online dictionary specialized in basic e-commerce terminology.
Guia del comerç electrònic
Introductory guide to e-commerce, online sales, related legal aspects, etc.
La importancia de la Innovación en el Comercio Electrónico
Article introducing a model that relates the age, size and innovation of the business to e-commerce.
Ecommerce website value model for SMEs - International Journal of Electronic Commerce Studies
Article explaining an operational website model for e-commerce.
E-commerce trends and impacts across Europe
Study on e-commerce activity patterns and their impact.
CNMCData - Comision Nacional de los Mercados y la Competencia (CNMC)
Statistical data website of the National Markets and Competition Commission (CNMC).
E-commerce statistics - Eurostat
Eurostat article, with statistics about e-commerce in the European Union.

Compilation of the most outstanding organizations working for digital innovation through the application of Internet technologies to foster e-commerce.

E-commerce can be divided into different typologies, according to purpose, platform, object and target group. The distinction according to target group of the e-commerce service is the most common, and there are several kinds, depending on the types of economic agents involved and the relation established: business to business (B2B), business to consumer (B2C), consumer to consumer (C2C), consumer to business (C2B), business to administration (B2A) and consumer to administration (C2A). Below we describe two of the most common relation types in more detail: B2C and B2B.

Although they are terms that share common ideas, e-commerce, e-marketplaces and e-business are concepts that represent different realities. Each of these terms involves different tasks, with different purposes. Next we explain e-business and e-marketplaces, to distinguish them from e-commerce.

The particularities and innovations of e-commerce make the existence of a legal framework essential to regulate online and telephone purchases.

One of the sectors that is adapting in order to digitalise is that of banking products of financial or investment instruments and insurance policies. This is motivated by the large number of regulations affecting it, above all in terms of general interest and consumer protection principles. 

Digital marketing, also known as online marketing or marketing 2.0, consists of implementing traditional marketing techniques and marketing strategies in digital environments.

A large number of periodical publications and books explore e-commerce from different perspectives.

Selection of news aggregators to keep up to date with e-commerce.