More than half a billion people already own profile on Twitter and Brazil has a good part in it. Only the United States, according to data compiled by Semiocast, have 140 million users on the microblogging network.
According to the French consulting company, exceeding the 500 million
occurred before July 1, when there were 517 million twitterers
worldwide. In June 1058 it was billion tweets posted public - 25.8% of them were Americans....
