When you do research, you want to find the best information to support your ideas. This requires careful evaluation of the information you find.
One rule of thumb for evaluating all types of sources is the CRAAP Test. This test asks you to evaluate the Currency, Relevance, Authority, Accuracy, and the Purpose of each source you consider for your project. Check out this video from Western Libraries to see how this test will help you write a great paper, not a crappy one.