
Predatory Publishers: Avoiding Scams by Working with the Society as Your Trusted Partner by The Edocrine Society
This is a concise distillation of predatory publishing from the POV of a legitimate publisher, The Endocrine Society, who did their own investigation of a predatory journal / publisher crowding in on their own good name and reputation.
It's all good to know beforehand, in case anyone asks for help publishing in some of these dodgy journals.