Within the past few months, Mark Israel has published a second edition of Research Ethics and Integrity for Social Scientists, and Robert Klitzman and Carl Schneider have published substantial new works on the IRB debate.
At some point I hope to find the time to review these in depth. For now, here's the bibliography:
Israel, Mark. Research Ethics and Integrity for Social Scientists: Beyond Regulatory Compliance. Second Edition edition. London; Thousand Oaks, Calif.: SAGE Publications Ltd, 2014.
Klitzman, Robert. The Ethics Police?: The Struggle to Make Human Research Safe. 1 edition. Oxford ; New York: Oxford University Press, 2015.
Schneider, Carl E. The Censor’s Hand: The Misregulation of Human-Subject Research. Cambridge, Massachusetts: The MIT Press, 2015.