Indexes statistical data published in federal, state, and selected privately published titles, at the table level. In some cases the fulltext of the document is also available.

The best starting-place for statistical information on the United States, for the colonial era and 1790-2000 (including the Confederate States of America). Presents 37,339 data series on population (including vital statistics, immigration and emigration), work and welfare (including labor, slavery, education, health, economic inequality and poverty, social insurance and public assistance), economic structure and performance (includuing national income and national product, business cycles, prices, consumer expenditures, savings, capital, and wealth, business organization, and financial markets and institutions), business sectors and industries, and governance and international relations (including government finance, elections and politics, crime and law enformcement, wars, armed forces, and veterans, and international trade and exchange rates).

Open Doors
Information on international students in the US and worldwide. Since UPenn is a member of IIE, students, faculty, and staff may request an individual password from IIE. After connecting, click on "new user."

Cartographic Modeling Lab, University of Pennsylvania

Produces maps and reports of US Census Tract level data from 1940-2000. Using high quality maps and data, they make available the full contents of the tract data for the United States for the full period. Reports include aggregated totals and the system allows for slideshows demonstrating change over time. The data can also be exported as excel spreadsheets for easy reuse.

The central statistical information service for the United Nations and its affiliates and international partners. Replaces UNSTATS.