Predatory Journals:
The word predatory is coined by Jefferey Beall, a scholarly communication librarian at the University of Colarado, Denver.
Jeffrey Beall, a former librarian, collated a list of potential and possible predatory scholarly open access journals.
Predatory journals exploit the publisher model where the authors pay to publish articles and that are usually made available for free on web.
The main purpose is to prey on scholars and academia desperation to publish the results of their research.
These journals are rarely peer reviewed and provide no relevant information about the members of editorial board, peer review process, scope and purpose of the journals etc.
The list of possible predatory publishers was based on Beall's opinion, and it has been continued to be widely used.
Potential predatory scholarly open-access journals
List of Journals who claim to be in DOAJ
Potential Risk in publishing Predatory Journals