Have social networks always existed?
I think that social networks have been with us since the beginning; the only difference is the name that has been given to them. Before globalization, people sent messages with letters that travelled through towns, villages, or even countries. Surely, that must have been really annoying, for it must be really stressing not to know whether your letter has arrived to the destinatary and having to wait for an unsure answer. Later, without the improvement of the electric telegraph, the telephone would not exist. Now, we can use the phone to communicate inmediately with someone and hear their voice. The telephone entreprises take advantage to sell this service because it has been demanded by people since 1910. Moreover, Internet was developed in 1990, the use of Internet has increased so fast in the occidental. The majority of communications' industries - including radio, television and the newspaper - have adapted to globalization. This event also caused the appearance of n...