In some library databases, there is an option to narrow your search results to peer-reviewed only. These are scholarly sources that have undergone an extra level of authenticity by being approved regarding the content, such as: Is the research up-do-date? Is it contributing something to the field? Is it presenting all sides? If not, is it at least acknowledging the lack? Are the structure and citations correctly formatted?
Expert tip: look for any options to narrow down your search to scholarly or peer-reviewed only. Typically, this option is located on the left side, the right side of a search page, or at the top or bottom. Sometimes, you will need to look for and click on the Advanced Search option to find this. Sometimes, though, it is simply not available as an option.
Click on the above link to learn about the difference between popular sources (like Time Magazine, Newsweek, and Business Week) and scholarly sources (such as The Journal of American History, Scandinavian Studies).
Click on the above link to learn about the differences between primary sources (created during the time period being studied) and secondary sources (created after the fact).
A trade publication (or trade journal) is a periodical containing news and items of interest concerning a particular trade, field, or profession. Examples include Advertising Age, Chemical Week, and Accounting Today.