Siteseen
Siteseen: American Historama: The Harlem Renaissance
Provides an overview and detailed facts about the Harlem Renaissance, the flowering of African-American culture.
University of Illinois
University of Illinois: Modern American Poetry: "Letter From Spain"
This site from Modern American Poetry provides a review of the famous poem by Langston Hughes. The information that is provided is somewhat brief, but factual, and worth checking out.