Feature Articles are they main articles for a particular theme. Typically these articles are from invited writers who have previously published or shown an expertise in the particular theme area.
Instructional Articles are "how to" or educational articles. They may show the methods of doing something in preparation, and offer clear instruction in a particular area.
Regular Article are articles that we consider "general articles" that cover any topic relating to Preparedness, survival, self-sustaining, etc. Any column writing on the conversation of preparation will be considered an article.