Social networks as a social structure is one composed of a set of actors both by people and organizations that relate according to some criteria, whether by friendship, professional or some kinship. Today with globalization, social networks have appeared that allow individuals to be interconnected and interact to the point of having a type of relationship between them.
Some research has shown that social networks are very useful for the individual, from kinship relationships to organizational ones, in the latter we talk about political networks and the degree to which individuals or organizations achieve their objectives or receive influences.
The social network has been used since its inception to denote somewhat complex sets of relationships between members of social systems in all dimensions, be it interpersonal and international. Today social networks have become study methods given their influence on society and its development.
There is a theory called six degrees of separation, which ensures that each person is connected to the rest of the world. This is based on the fact that there is a chain of acquaintances and there is only a degree of separation of six people between each of them. This theory says that a person knows approximately one hundred of them and that if each one transmits a message, the information would easily reach ten thousand individuals. The internet and virtual social networks have recovered this theory.
For its part, social networks on the internet favor contact between individuals anywhere on the planet. Making contact online with a person has its pros and cons, but today even couples have formed there.
There are three types of social networks: generic, professional or thematic.
Generic social networks: they are the most common and used by almost everyone, Instagram, Facebook, Twitter
Professional social network: it is one that is based on labor relations to contact colleagues or people seeking employment. Example of them: Linkedin, Viadeo.
Thematic social network: they are based on a specific topic. They can relate people with the same hobby, the same activity or the same role. The most famous are Flickr, and YouTube.
