Does the source fit your needs and purpose?
Before you start amassing large amounts of research materials, think about the types of materials you will need to meet the specific requirements of your project.
Encyclopedias, general interest magazines (Time, Newsweek online), or online general news sites (CNN, MSNBC) are good places to begin your research to get an overview of your topic and the big questions associated with your particular project. But once you get to the paper itself, you may not want to use these for your main sources.
Focused Lay Materials
For a college-level research paper, you need to look for books, journal articles, and websites that are put out by organizations that do in-depth work for the general public on issues related to your topic. For example, an article on the melting of the polar icecaps in Time magazine offers you an overview of the issue. But such articles are generally written by non-scientists for a non-scientific audience that wants a general—not an in-depth—understanding of the issue. Although you’ll want to start with overview materials to give yourself the broad-stroke understanding of your topic, you’ll soon need to move to journals and websites in the field. For example, instead of looking at online stories on the icecaps from CNN, you should look at the materials at the website for the National Resources Defense Council (NRDC) or reports found at the website for the National Snow and Ice Data Center (NSIDC). You also should look at some of the recent reports on the polar icecaps in Scientific American or The Ecologist.
If you already have a strong background in your topic area, you could venture into specialists’ books, journals, and websites. For example, only someone with a strong background in the field would be able to read and understand the papers published in the Proceedings of the National Academy of Sciences or the Journal of the Atmospheric Sciences. Sources such as these are suitable for more advanced research paper assignments in upper-level courses, but you may encounter source requirements like these in freshman writing courses.