University of St. Andrews (UK)
University of St. Andrews: Richard Phillips Feynman
The University of St Andrews provides this biographical site on the life of Richard Feynman. The site has links to quotes, posters and references.
Other
Science Hobbyist: Dr. Richard Feynman
This site from the Science Hobbyist is dedicated to Dr. Richard Feynman (1918-1988 CE), Nobelist Physicist, teacher, storyteller, bongo player. The site has links to articles by and about him.
Nobel Media AB
The Nobel Prize: The Dual Nature of Light as Reflected in the Nobel Archives
This article discusses the historical figures who contributed to our understanding of the nature of light, x-rays, Quantum ElectroDynamic (QED) theory, and so on.
Wolfram Research
Wolfram Science World: Quantum Electrodynamics
In its description of quantum electrodynamics this definition provides the governing equations.