Beall’s List of Predatory Publishers 2017 by Jeffrey Beall.
From the webpage:
Each year at this time I formally announce my updated list of predatory publishers. Because the publisher list is now very large, and because I now publish four, continuously-updated lists, the annual releases do not include the actual lists but instead include statistical and explanatory data about the lists and links to them.
Jeffrey maintains four lists of highly questionable publishers/publications:
Beall’s list should be your first stop when an article arrives from an unrecognized publication.
Not that being published in Nature and/or Science is a guarantee of quality scholarship, but publication on Beall’s list should raise publication stopping red flags.
Such a publication could be true, but bears the burden of proving itself to be so.