Since the invention of the telegraph in 1792 (first method of bidirectional communication using technology), and later, the invention of the telephone (patented by Graham Bell), things have changed a lot. The beginnings of Internet were in 1969 as 'Arpanet', connecting three universities in California and one in Utah. Since then, a revolution that changed the way people communicate took place. Blogs and social networks began to have a great importance in communication. Blogger was born in 1999 and later in 2003, Facebook, the social network of reference. Certainly this method has revolutionized the way we communicate but, how has been the impact on people who use them?