Anthony M. Limperos, Daniel J. Tamul, Julia K. Woolley, John S. W. Spinda, S. Shyam Sundar. "It's Not Who You Know, but Who You Add: " An investigation into the differential impact of friend adding and self-disclosure on interpersonal perceptions on Facebook. Computers in Human Behavior, 35:496-505, 2014. [doi]
Abstract is missing.