SMS stand for Short Message Service, it is mostly used for text communication on a mobile phone. A SMS is usually 160 characters long, and this includes spaces,letter and numbers. It also has 2.4 billion user, and it has been on the rise since it first began, in the 1980s. In America, in 2001 not that many SMS were being sent a month, in 2008 is was just over 70 billion texts a month.

As of 2006 SMS is worth 81 billion dollars global, the average SMS cost 12p, even though it cost the providers approaches zero.