When writing research papers, you will also be evaluating sources as you search for information. You will need to make decisions about what to search for, where to look, and once you've found material on your topic, if it is a valid or useful source for your writing.Contributors: Dana Lynn Driscoll, Allen Brizee. Summary: Evaluating sources of information is an important step in any research activity.rint Sources: In most traditional publications, external sources of information and direct quotations are clearly marked and identified. Internet Sources: Sources the author used or referred to in the text may not be clearly indicated in an Internet source.