handbooks, some textbooks, subject-specific reference sources, general encyclopedias, bibliographies, and open websites (These types of sources should be used only for background information and are not usually included in the bibliography of a college-level research paper.)
Non-fiction books and other monographs, some textbooks, some scholarly journal articles, literary criticisms, statistical summaries, trade publications, newspapers, popular magazines, and documentaries
Some scholarly journal articles, in-depth scholarly book chapters, blogs, photographs, and raw statistics
The human world is a veritable web of information. Information can come from many different types of sources. Which kind should you use?
It depends on what questions you are trying to answer.
The following tutorial will examine a variety of information types and materials regularly used for academic research. We will consider how they are produced, advantages and disadvantages of particular resource types, and some suggestions for determining what sources are best-bets for your particular research needs.
Rule of thumb: Use a variety of sources to add validity and depth to your work. A variety of sources also opens your point-of-view to opinions that differ from yours. That's a good thing!