The California Novels
- Character lists, chapter summaries, maps, publishing histories and book cover art for The Pastures of Heaven, The Red Pony, To A God Unknown, Tortilla Flat, In Dubious Battle, Of Mice And Men, The Long Valley, The Grapes Of Wrath, Cannery Row, East of Ede
- http://www.ac.wwu.edu/~stephan/Steinbeck/

Gradesaver: The Pearl
- Summary and analysis including biography, message board, background information and quiz.
- http://www.classicnote.com/ClassicNotes/Titles/pearl/