The COR Curriculum, developed by the Digital Inquiry Group / Stanford University, provides free lessons and assessments to teach students to evaluate online information. 

In 10 entertaining episodes, John Green explains how to navigate online information. 

Learn 

• How to evaluate websites through "lateral reading;" 

• How to decide which sites are trustworthy...and which aren't

• How to use Wikipedia effectively

• ...and more! 

Check out this analysis of the reliability of popular media. Sources used for factual research should be towards the top center of the media bias chart. 

NOTE: this chart - which is available to view online - rates popular media (news sources, blogs, and other websites). It does not include academic journals, which are typically found in subscription services.