"God is the name by which I designate all things which cross my path violently and recklessly, all things which alter my plans and intentions, and change the course of my life, for better or for worse."
-C G Jung
You're operating on the pretentious plane of dissertations and academic journals in the "hard sciences". That's not what we're talking about here.
"It ain't what they call you, it's what you answer to." - W. C. Fields
I advise not engaging him/her on this topic anymore. Sounds like he/she may be gone from the thread anyway.
(Of course Ecofarm is entitled to his/her beliefs - only peer-reviewed books should be used as sources - but not to the fact others of us have stated: i.e. yes, we used magazine articles as sources while in college.)
And then there are trade publications, which are regarded generally as "popular" as opposed to scholarly. I regard them as "bridge" publications because scholarly experts do publish in these, e.g. state co-op publications published by their extension services that are mailed free of charge to rural residents. The one I receive monthly does contain articles published by experts in the field, and so I would count this as a scholarly source.
Much depends on the industry. Google "industrial distribution journals," and see what you hit. But there are venerable and respected magazines--trade pubs--which do contain scholarly information. The best example is HR Magazine. I wouldn't hesitate to cite it in a bibliography for publication.
As for a book, I think it is fine so long as it contains footnote resources that support author claims/suppositions. I'm a bit iffy about magazine articles. Depends on the author's reputation and/or credentials.
Take your own advice, Eco. You are mistaken about so very much, and your own understanding is limited. Among your mistaken claims are that there are no critiques of magazine articles, books have to be peer-reviewed by at least 20 people with a doctoral degree, an academic journal is not a magazine (no, it’s an academic magazine that distinguishes itself by the term “journal,” but it is a periodical just the same), blogs and magazines aren't cited in scholarly publications, and etc.
I wouldn't be saying this if your tone throughout this thread hadn't been so arrogant and superior, but "we in academia" includes you, unless you've finished, only as a provisional member. Wait until you yourself have served on a doctoral committee and until your experience with peer review isn't so limited--when you're doing a lot of it yourself, I mean--and until you yourself are trained in bibliographic analysis to puff yourself up in this way.
The American Journal of Medecine is a perfectly acceptable source of information.
Dr Ho`s semi-monthly journal of Dr Ho`s medicinal herbal remedies published, edited and reviewd by Dr and Mrs. Ho, not so much.
When discussing say the origins of the 2nd world war Mein Kampf could be used.
However it would be silly to try and use it as a source if writing an anthropologiocal paper on jews in 1920`s Austria.
A fanatic is one who can't change his mind and won't change the subject.
A lie gets halfway around the world before the truth has a chance to get its pants on.
When I read the post about blogs, I immediately thought of Powerline , Little Green Footballs and "Memogate" (also known as "Rathergate"). Go to Google Scholar, type in "powerline blog and memogate," and see what you hit.