You can a wealth of source material on the Internet, usually in digital collections from libraries, archives, museums, and government organizations. The trick is how to find them. Google is an option, but you might also consider trying directories and catalogs that specialize in scholarly resources. We recommend the following:
Listed below are some specific collections we think you might find useful.
Some of these resources are from the Center for Research Libraries, and they can be requested through our Library's Interlibrary Loan service.