Bartleby
Bartleby.com: The Short Story: Specimens Illustrating Its Development
Written by literary critic and Columbia professor, Brander Mathews, this site lists 23 short stories from the Middle Ages through the early 20th century. Mathews' notes on each story show the development of the genre.
Annenberg Foundation
Annenberg Learner: Literature: What Makes a Good Short Story?
First this page asks students to read a short story called "A Jury of Her Peers." Then, this page asks students to "Read about the elements of a good short story and to take part in activities related to 'A Jury of Her Peers.'"