In this lengthy article I will try to relate the Big Data to different aspects of digital marketing, and how both are directed, if they have not already, toward an essential and absolutely necessary relationship. And is that Big Data offers digital marketing a series of tools and methodologies that improve it and bring it closer to end users, thus becoming great allies. First of all, I will give you a brief overview of Big Data: I will explain its origins and background, its definition, and its explosion. Later I will analyze in which aspects the Big Data can help the digital marketing finally, to establish some conclusions
