Dr. Kimberly S. Young, PsyD, is the primary researcher to have brought clinical attention to the issue of problematic Internet use in 1996. She is also the author of Caught in the Net, the first book to address Internet addiction.

Dr. Cristiano Nabuco de Abreu is the director of the Ambulatório Integrado dos Transtornos do Impulso (Integrated Impulse Disorders Outpatient Unit) at the University of San Paulo.