The Scientific American database contains the entire editorial contents of Scientific American from January 1993 through the present. Articles are in PDF format, which maintains the integrity of the printed page with all the graphics. The archive is kept up to date with the current issue available on newsstands.

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THe Historical Statistics of the United States, is the standard source for quantitative indicators of American history. 

Topics ranging from migration and health to crime and the Confederate States of America are each placed in historical context by a recognized expert in the field. The fully searchable and downloadable electronic edition permits users to graph individual tables and create customized tables and spreadsheets reflecting individual, particular areas of interest.