"Twitter" successful sixth year

It was March 21, 2006 when it appeared the first tweet, “just setting up my twttr”, written by the then thirty year old Jack Dorsey, American entrepreneur and computer. Since then, the microblogging site has continued to expand: in six years, Twitter has almost reached the milestone of 500 million users. There are 750 thousand developers around the world and nearly half a million applications and services that rely on the site. Many operators in the field of exploiting Twitter intensely, almost turning it into a kind of agency “personnel.” A year ago, following the devastating earthquake that struck Japan, have been well recorded 6,939 messages per second, while in 2009, the news of the death of Michael Jackson has spread at a rate of 465 tweets per second. During the holidays, tweets far exceed the sms.