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Analog is a very long-running and influential for-profit science fiction magazine of fiction, essays, letters, and articles.
John W. Campbell
John W. Campbell was a controversial editor of this zine between 1937 and 1971. Campbell published many stories, including Isaac Asimov's Foundation series. The period beginning with Campbell's editorship is often referred to as the Golden Age of Science Fiction.Fans often commented up on Campbell's comments in various venues, including "Analog's" editorials. An example from Trumpet #4 in 1966:
From Ruth Berman in 1970, commenting on an essay by Ron Solaff called The Negro And Science Fiction:
In short, he marks the cards, stacks the deck, deals seconds, and claims the pot without facing his hand.
Nor is this editorial an exceptional one. Campbell-baiting is an old sport in fandom, and easy finger exercise whenever a writer is hard up for a topic. So much so that I suspect many readers have agreed with everything I've said but are asking, "So what?"
Campbell is what's up front in every issue of "Analog," the world's best science-fiction magazine according to the verdict at the Loncon. We used to complain about cheap and tasteless covers on SF magazines; now that those magazines are gone and SF covers usually depict nothing at all recognizable, we are stuck with stupid and galling editorials.
[...]Finally, there's that hypothetical Radcliff co-ed and all the people like her. If John Campbell really wants their respect he can ear it, simply by devoting his huge enthusiams to honest science fiction for a change. About all that the rest of us can do is to stop buying his magazine. 
if Stoloff insists on suggestions for attacking the large problem of bigotry through one of its symptoms — the whiteness of SF - he can stop buying "Analog" (I have myself, but because I find Campbell's ideas in general repugnant, not on account of this one), and write letters to the publishers and editors when books and other magazines print good and multi-racial stories. Praising junk gets one nowhere. There's no particular point to writing Campbell judging by his editorials and his comments in the letter column (back in the days when I was getting the magazine), he has a closed mind. Not buying his magazine is the only "pressure" available. Which is no pressure at all while the problem of bigotry remains important in society. 
- from Trumpet #4, from the very long essay "Cardshark Campbell Meets Sex and the Common Man" by Tom Perry
- from an LoC by Ruth Berman in "Vorpal Sword" #3