Here's a link to a new ESPN college data tool that allows you to search for various revenue and expense categories reported by some major college and university college athletic programs. The revenue sources include ticket sales, donations, university subsidies, student fees, etc. The data is very detailed and would possibly be of use to researchers and students. From the disclaimer:
The information comes from detailed financial disclosure forms that athletic departments submit annually to the NCAA and federal government. ESPN requested the forms from all 120 Division I colleges in the Football Bowl Subdivision under state and federal public records laws. Private colleges and others not subject to those laws declined to release their forms. In those cases, ESPN filled in some of the blanks using financial information that public and private schools are required to provide to the U.S. Department of Education Office of Postsecondary Education or the IRS.