Twitter

Twitter is a microblogging service which more or less means you are restricted to a small amount of characters per post, to keep them direct and short. Many celebs use twitter as a means of promoting their work or just for general post for their followers. It was created in march 2006 by Jack Dorsey and now gets 65 million tweets a day and over 200 million users overall. Twitter is also a great service for getting info around the world fast for example the killing of Osama Bin Laden was broadcast by a Pakistani IT specialist while the raid was happening next door to his house.