Credo Reference is an excellent resource for finding background information on a topic. It searches updated encyclopedias on a wide range of subjects. It can also link you to literary criticisms.
If you are looking for a specific subject, or want to go directly to an individual database, go to the Databases A-Z list. Databases like ProQuest Central or Opposing Viewpoints are included on this list. You can also access the list from myCuesta.