New study on predatory journals:
Piotr Sorokowski, Emanuel Kulczycki, Agnieszka Sorokowska & Katarzyna Pisanski, "Predatory Journals Recruit Fake Editor," Nature 543 (March 2017): 481-483. doi:10.1038/543481a
"An investigation finds that dozens of academic titles offered 'Dr Fraud' — a sham, unqualified scientist — a place on their editorial board. Katarzyna Pisanski and colleagues report."
There is also a New York Times article on this study: Gina Kolata, "A Scholarly Sting Operation Shines a Light on ‘Predatory’ Journals," New York Times, March 22, 2017, https://www.nytimes.com/2017/03/22/science/open-access-journals.html?_r=0