Any Good Sites or other sources of information on Jazz, Speakeasies, Drug abuse and the 20th century?

All subjects need to somehow be related, so I am not looking for information on just one category.
My reason for asking this question is because I am working on a paper focused around the question: What controversy or problems arose with Jazz in the 20th century? And I figured it would not hurt to ask the collective for some good advice on where to look for info.