Through the Internet, there is much more information available today than was the case only a few years ago. The following four criteria can help you to evaluate your sources:
Thinking about any type of publication, including web sites, in this way will help ensure that you have located the best information available.
If you would like some real-life examples of how to evaluate materials for your research, the Gingrich Guide, the library's self-paced online tutorial, has a section Evaluating Sources, which specifically focuses on the four criteria above and how to use them.