Centers for Disease Control: Healthy Aging
This CDC site includes reports and data on aging.

National Health and Aging Trends Study
NHATS is an ongoing study being conducted by the Bloomberg School of Health at Johns Hopkins University. Data from the study is available to registered users.

National Institutes on Aging
The National Institute on Aging, one of the 27 Institutes and Centers of NIH, leads a broad scientific effort to understand the nature of aging and to extend the healthy, active years of life.

NBER Bulletin on Aging and Health
This semiannual bulletin is published by the National Bureau of Economic Research. Articles cover both U.S. and international topics relating to health, social and economic issues of aging.

SHARE: Survey of Health, Aging and Retirement in Europe
The SHARE Project is a database of data and reports on 20 European nations plus Israel.

United Nations Programme on Aging
Facilitates and promotes the Madrid International Plan of Action on Aging, including designing guidelines for policy development and implementation; advocating means to mainstream aging issues into development agendas; engaging in dialogue with civil society and the private sector; and information exchange.

World Health Organization
Reports and publications on the topic of aging.

World Population Aging
An annual report available for download from the United Nations Population Division.