books.google.ca - Prior to the civil rights movement, comedians performed for audiences that were clearly delineated by race. Black comedians performed for black audiences and white comedians performed for whites. Yet during the past forty-five years, black comics have become progressively more central to mainstream culture....http://books.google.ca/books/about/Laughing_Mad.html?id=REBY5ldTaAAC&utm_source=gb-gplus-shareLaughing Mad
