Leonard Kleinrock - Internet Pioneer
Leonard Kleinrock, now at the University of California at Los Angeles, created the basic principles of packet switching, the technology underpinning the internet, while a graduate student at MIT.
Kleinrock's host computer became the first node of the internet in September 1969. He directed the first message that was sent between computers on the internet in October 1969. He was listed by the Los Angeles Times in 1999 as among the '50 People Who Most Influenced Business This Century'.
The CBC conducted an interview with this fella that you might find very interesting. It's title is "The past and future of the internet".