On the face of this planet, if there's one service that's truly popular after Facebook, that's Twitter. The microblogging platform has grown into so much more than where it started from, similar to how the largest social network - Facebook - evolved. Twitter has become the number one source for keeping abreast with people from almost all walks of life, especially celebrities. Now, who is a bigger celebrity than the POTUS - President Of The United States - himself? It appears that six years in the office, President Barack Obama finally has his own Twitter account which he will handle directly, and he sent his first tweet using an iPhone, of all devices.
