So many different types of sources, so many assignments, so little time. Your professor may ask for a certain number of popular, substantive, and academic/scholarly sources. Or the assignment may require at least one and a variety of and . You heard about them in class; but, now that you have to find them on your own--relating to your research question--you don't feel confident you can tell the difference. Use the links on this page to quickly get the help you need.