Social Networks: between global and local
Online social networks are recent phenomena that have become increasingly important on the internet due to the easiness with which information can be collected, processed and combined with other information. Even though Orkut is still the most popular social network in Brazil, Twitter and Facebook are coming closer.
A number of researchers are investigating this new phenomenon, its dynamics and the impact into society. The areas of knowledge mostly affected by the coming of online social networks are communication, journalism, marketing, theoretical ecology, public opinion research and sociology.
One of the most interesting features of social networks is that they have worldwide reach, while they also allow users to define to whom they want to connect and share information. Because of that, social networks render a mix of global and local.
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