1. Book reviews can be a source of inspiration, especially the review essays published in Reviews in American History (available on the web via JSTOR).
David M. Kennedy, Freedom from Fear: The American People in Depression and War, 1929-1945 (1999)
Anthony J. Badger, The New Deal: The Depression Years, 1933-1940 (1989)
Alan Brinkley, The End of Reform: New Deal Liberalism in Recession and War (1995)