Joseph Carl Robnett Licklider - One of the inventors of the internet
No one person invented the Internet as we know it today. However, certain major figures contributed major breakthroughs:
Joseph Carl Robnett Licklider (March 11, 1915 – June 26, 1990), known simply as J.C.R. or “Lick” was an American computer scientist, considered one of the most important figures in computer science and general computing history. After early work in psychoacoustics, he became interested in information technology early in his career. Much like Vannevar Bush, J.C.R. Licklider’s contribution to the development of the Internet consists of ideas, not inventions. He foresaw the need for networked computers with easy user interfaces. His ideas foretold of graphical computing, point-and-click interfaces, digital libraries, e-commerce, online banking, and software that would exist on a network and migrate wherever it was needed. He has been called “computing’s Johnny Appleseed” for having planted the seeds of computing in the digital age.

For more information:
http://en.wikipedia.org/wiki/J._C._R._Licklider