The databases can complement your Google Scholar search. While Google Scholar can expose you to research in many subjects, the databases let you search specific collections of resources for distinct subjects. Use this page to decide what database might be a good fit for your own topic.
Sometimes you're not searching blindly for articles on a topic. You may already know about a really good article by its title or citation, and wish to find out whether you can access the full text for your research. This tutorial will take you through the steps to find a known item.