Don't forget that all campus libraries have reference collections with scholarly encyclopedias, atlases, and other publications that may provide useful background information for your research
There are a number of databases that the Syracuse University Libraries subscribe to that will also give you access to a large variety of e-books dealing with women's & gender studies, if you are affiliated with Syracuse University. To access those databases, click on the "databases" link under the find column on the Syracuse University web page (library.syr.edu). Then scroll down to the bottom of the page and click on the link under the heading "type", "E-Book Publisher Collections"
Here are examples of some of those databases below: