You should carefully evaluate all information, whether from a book, article, or website, by asking the following questions:
MLA Handbook. 8th ed., The Modern Language Association, 2016, pp. 11-12.
Google can be helpful for your research. Here are some ways to make sure you're getting the best you can out of it:
Image: MacMeekin, Mia. "How to Choose a Good Online Source." An Ethical Island, anethicalisland.wordpress.com/2015/03/20/how-do-you-choose-good-online-sources/. CC BY-ND-NC 1.0