Dr George Ayala, PsyD, Executive Officer of the Global Forum on MSM & HIV (MSMGF), California, USA. Dr Ayala, leads the agency’s international policy, advocacy, research, and technical support responses to HIV among gay men and other men who have sex with men (MSM). Dr Ayala has worked in the non-profit HIV/AIDS sector managing multi-million dollar budgets and supervising large, interdisciplinary teams of professionals for over 20 years. A clinical psychologist by training, Dr. Ayala has conducted HIV social science and intervention research since 1996. His research has mainly focused on understanding the mechanisms through which social discrimination affects the risk for HIV among gay men of color in the U.S. He has more recently explored the facilitators and barriers to HIV-related services through his international cross-sectional online survey research with gay men/MSM.