The Social Network. Concept and additional information.

Concept Definition

What is a social network? From the point of view of the sociology, which is the science that studies the society, a social network is a social structure made of individuals or organizations (nodes) connected to others (ties) by any kind of relationship. Now, we are on the XXI Century, and we are always surounded by new technologies. Approximately 1.67 billion people worldwide use Internet, so what happens when a social network is combined with new technologies? Here appear the concept of social network service.

A social network web is an online community of people who share interests and/or activities, or who are interested in exploring the interests and activities of others. There are hundreds of online social networks, but I have chosen the principal ones:

1- Facebook.com
2- Twitter.com
3- MySpace.com
4- Blogger.com
5- Tagged.com
6- Tuenti.com
7- Flickr.com
8- Linkedin.com
9- Hi5.com
10- Orkut.com