John F. Kennedy Center
The Kennedy Center: Uncivil Civilization in "The Hairy Ape" Lesson
Various activities, discussions and assignments are suggested by this lesson plan that is designed for upper level high school students, particularly those in AP or IB programs.
Cengage Learning
Houghton Mifflin College: Eugene O'neill
The site is devoted to the study of "The Hairy Ape." The questions are very good and related links are embedded in the text.