Democritus
- Article from the Wikipedia openly-edited encyclopedia.
- http://en.wikipedia.org/wiki/Democritus

Drury University - Democritus
- Brief discussion of Democritus' ideas.
- http://www.drury.edu/ess/history/ancient/Democritus.html

Atomism
- S. Marc Cohen's lecture notes on Democritus, considering this thinker in the broader context of Presocratic and Socratic thought.
- http://faculty.washington.edu/smcohen/320/atomism.htm

Works of Democritus
- This classical Greek thinker's fragments, arranged by subject. Adapted from the 1948 Freeman translation.
- http://www.humanistictexts.org/democritus.htm