Peer reviewed journals, can also be referred to as academic or scholarly journals, feature content primarily academic in nature.
Articles or papers in these publications go through a rigorous review process by a field of peers/experts in the specific industry or academic field, for approval before publication. These articles include empirical research, scholarly discourse, and critical analysis of subject areas.
Understanding Science. 2019. University of California Museum of Paleontology. 2/22/2019 <http://www.understandingscience.org>.
Examples of non-peer reviewed resources include newspapers, magazines, trade publications, blogs, etc.
Peer-Reviewed Journals General Overview
Trade Journals or Trade Publication General Overview
Popular Resources: Magazines and Newspapers General Overview
Web Resources General Overview