Lauren Coker-Durso's students ask

How do you know exactly which database to use?

Look at the databases by subject lists. http://libraries.slu.edu/databases/databases.php
You can also click on the little blue question mark next to the name of the database for a detailed description. You can ask at the reference desk (email, chat phone or in person) for recommendations. Some of you wondered why we had so many databases. SLU is a big university with graduate and undergraduate programs in many different disciplines so our library subscriptions need to support all of those students and faculty. In reality you will probably only need to use a few databases for most of your research.

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Remember that you can identify databases in various subject areas from the Databases page. Within each subject category, you'll see a list of the related databases along with an information button to the left of the database name. Click on the information button to view a brief description of the database. These are the first steps in deciding whether a particular database might be helpful. The next step is to search the database for information on your topic.