Abstract
The advent of the internet has completely modified our lifestyle. Through social media, we spend more time in front of the screen looking for information, sharing passions and communicating with our family, friends or strangers in communities with similar interests. Thanks to the social networks. Now the consumer has more power therefore he can easily and freely express his interests. The internet has become an important and effective communications platform for every micro and macro- economic player.
The evolution of technology and the reduction of equipment costs have allowed us to use these media extensively. Social media and technology have become a major part of contemporary communications. Twitter became the fastest growing social media in 2009 and Facebook registered 350 million users the same year (800 million today). This makes Facebook the third world "power" after China and India. This social media phenomenon has changed the way of communicating.
Furthermore, in the last three years we have witnessed a massive arrival of the mobile internet: laptops, smartphones and tablets. Today, an internet user must be able to find information immediately. We feel the need to communicate with the world, to share our ideas and creations and to comment on products and services we use. For that reason companies have no choice other than to follow the trend and join the social media.
