I found this site interesting even though it doen't have much information listed nor the information I was looking for.

http://www.nps.gov/archive/gett/getteducation/bcast01/gcast-2.htm

This is the NPS giving three causes of the war. I find it interesting becasue slavery is the last issue listed. Those of us who have been following the NPS's reconstruction of the battlefield interpertation centers know they are changing the format to focus moreon slavery. This site is Gettysburg the first site to be reconstruucted.

GP