ARTFL Encyclopedie: Project to prepare an online edition of Diderot's Encyclopedia. The text itself is available only to subscribing institutions.
Biography.com: Diderot, Denis: Brief biographical facts.
Denis Diderot: Biographical article from Books and Writers, with bibliography.
Denis Diderot: Brief biographical article on this leader of the Encyclopedists, from the Internet Encyclopedia of Philosophy.
Denis Diderot Biography: Three biographical essays, by John Dunkley, C.A. Sainte-Beuve, and Jean Starobinski, on this key Enlightenment thinker.
Denis Diderot Prints: A seller of prints of illustrations from the Encyclopedia. Online views and a biography.
Diderot Track: Denis Diderot: Biographical essay from an XML technology concern named after the philosopher.
Diderot, the Mechanical Arts, and the Encyclopaedie: A 1994 article from the Journal of Technology Education, by John R. Pannabecker.
Murphy's Law: Denis Diderot: An article by John Patrick Michael Murphy on Diderot's philosophical project and motivations.
People in Voltaire's Life: Denis Diderot: Illustrated biographical article, focusing heavily on the Encyclopedia project.
Wikipedia: Denis Diderot: Article from this openly-edited encyclopedia.