Popular articles can:

• provide general background information before you turn to academic journal literature;
• point to academic studies that are getting lots of attention; a newspaper or magazine or other popular publication may give a journalistic account of a scientific research project, mention its principal researchers, and mention the academic journal in which the research was published.

The first resource below brings up popular articles but also scholarly articles. To restrict in it to popular articles, run a search in it and then, on the left, limit the results to popular sources.