Twitter's mission is to give everyone the power to create and share ideas and information instantly, without barriers. Communication comes from short 140-character messages called "tweets".
Jack Dorsey (@jack)
is the CEO and founder of Twitter. He also serves on the Board of The Walt Disney Company. Jack became involved in web development as a college student, founding the Twitter in 2006. Since that time, Dorsey has served as CEO, chairman of the board, and executive chairman of Twitter. He also launched the successful online payment platform Square in 2010.