I just finished reading In the Beginning: Fundamentalism, the Scopes Trial, and the Making of the Antievolution Movement. It reads like a PBS documentary on the subject, covering the pre-Scopes trial era, to the trial itself, and afterwards (although it spends little time discussing modern creationism, from the 60's to today). I especially liked page 90, which discusses how racism played into the movement. Author W. J. Cash recalls,
"One of the most stressed notions which went around was that evolution made a Negro as good as a white man."
That quote ought to be whipped out every time someone like Ken Ham tries to say evolution is a racist theory.