This video from the California State University - San Bernardino provides a quick overview of the types of factors to consider when to use popular or scholarly sources or both.
When evaluating information from online sources it is important to practice the same skills fact-checkers use. This video from Eastern Kentucky University Library explains the SIFT method for evaluating online information. Remember to stop, investigate the source, find better coverage, and trace any claims back to their original source. This will require leaving the site you are on and opening multiple tabs but it will help verify if this is information you should share.
Remember when you're evaluating sources there are several factors that you need to consider when making a determination on whether it will work for you assignment or not.