If using library resources such as books or journal, magazine and newspaper articles:
If your instructor allows you to use the Internet for research, you are responsible for evaluating the website thoroughly. Some questions to ask are:
Please remember: Most scholarly, peer-reviewed journals are not available freely on the web. You will want to use one of the library’s databases to identify journal articles.
Critical Evaluation of Resources from the University of California Berkeley Library. It provides suggestions for evaluating a variety of sources.