A social network

A social network is a website that allows you to connect with friends and family, share photos, videos, music and other personal information with either a select group of friends or a wider group of people, depending on the settings your select. Social networks like Facebook, Myspace and LinkedIn are great ways of keeping in touch with friends and family around the world as well as making new connections with people based on similar interests or professions.
This paragraph is from the website affilorama.
This are the most popular social networks in Spain.