Social Security Administration (US): Open Government Initiative
List of numerous open-government initiatives, including many that make data available
health psychology
Office for National Statistics (UK)
Various government datasets from the United Kingdom
National Institute on Aging Division of Behavioral and Social Research (US)
List of databases and repositories for aging-related research funded in part or in whole by the NIA/SBR
National Archive of Computerized Data on Aging
Repository of datasets related to aging
iDASH (Integrating Data for Analysis, Anonymization, and Sharing)
Repository of biomedical and informatics data with some data on health psychology
Gateway to Global Aging
List of repositories for international aging-related social and behavioral research
Cambridge Centre for Ageing and Neuroscience
Not-yet-available repository of data from a group studying aging and cognition through epidemiological, behavioral, and neuroimaging methods
Alzheimer's Disease Neuroimaging Initiative (ADNI)
Repository of multimodal datasets related to Alzheimer's disease
Yelp Dataset
Data from Yelp reviews from approximately a dozen cities (including both U.S. and international data)
Total Army Injury and Health Outcome Database (US)
Multimodal dataset tracking injuries across the Armed Forces including demographics, health outcomes, self-reported health habits and risk-taking behaviors, and chemical exposures