Google Scholar (GS)
Google Scholar is a very helpful search tool for exploring issues within a topic. The "cited by" link indicates how many subsequent works cited this one and offers some guidance as to what articles are most important.
Tip! Connect Google Scholar with Buswell Library
Changing the settings in Google Scholar to include a "Find it @ Wheaton" link will give you access to full text resources that Buswell subscribes to and give you access when you are off campus.
One of the things that is important to remember when doing historical research, is that your search strategy will (and should) change depending upon the types of resources for which you are searching.