http://aspe.os.dhhs.gov/datacncl/datadir/
Assistant Secretary for Planning and Evaluation, U.S. Department of Health and Human Services
This online directory was produced for policy makers, researchers, and the public as a reference document on resources within HHS. It includes data resources with current or potential widespread application. The Directory includes descriptions of over 100 reporting systems or data collection instruments. Most of the Department's major data systems are included in this report.