CDC WONDER (Wide-ranging ONline Data for Epidemiologic Research)
http://wonder.cdc.gov/

CDC WONDER (Wide-ranging ONline Data for Epidemiologic Research) is a powerful database tool that puts CDC health data at Web users’ fingertips. The easy-to-use, menu-driven system is free to public health professionals and the general public. CDC WONDER allows Web users to form interactive queries and create reports, charts, and maps of the results. With this tool, users can: a) Search for and read published documents on public health concerns, including reports, recommendations and guidelines, b) Review reference materials and bibliographies on health-related topics, and c) Query multiple numeric data sets via “fill-in-the blank” Web pages. Available subjects include mortality (deaths) and natality (births), cancer incidence, HIV and AIDS, behavioral risk factors, diabetes, and census data. A summary of data sets or collections helps users understand the nature of each data set. Some of the accessible data collections are not readily available elsewhere. Providing access to several years of data at once, the tool simplifies reviewing health trends over time. This has been added to Healthcare Resources Subject Tracer™ Information Blog. This has been added to the source code for eHealthcareBot Search Engine.