Key elements
 

Author - researcher, specialist, journalist

Length - in-depth articles, shorter articles, one or two pages in length

Language - vocabulary, jargon, simple terms

Publisher - scholarly presses, professional organizations, commercial or trade publishers

Sources - footnotes & bibliographies always included, always cited but not as extensive, generally not cited

Graphics - charts and graphs with virtually no ads, ads related to profession, lots of photos and ads

Intended Value - to share research, trends and information in the field, current events or entertainment