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NASA is using PubMed Central to preserve and provide access to peer-reviewed papers resulting from NASA-funded research.

Search NASA reports, NACA documents and selected non-NASA archives in the fields of aeronautics, space science, chemistry and materials, engineering, geosciences, life sciences, mathematics and computer sciences, and physics.

Coverage: 1917-present
Tags: Aerospace, Aviation, Science, Space

NED is a database of approximately 750,000 extragalactic objects with bibliographic references and basic data.

Data and Statistics from NASS include the Census of Agriculture with data from 1997, 2002 and 2007.

The U.S. National Archives have scanned a significant portion of their holdings, including still and moving images on a wide assortment of topics. This page permits searching of those digitized items only. For a broader search of the holdings of the National Archives, start at their home page,

The National Atlas data is now archived as 1997-2014 Edition of The National Atlas of the United States on the U.S. government’s website.

The USGS continues to make at least a subset of the National Atlas data available under its National Map Small Scale Collection.

The NBER is the nation’s leading nonprofit economic research organization. Sixteen of the 31 American Nobel Prize winners in Economics and six of the past Chairmen of the President’s Council of Economic Advisers have been researchers at the NBER. The more than 1,000 professors of economics and business now teaching at universities around the country who are NBER researchers are the leading scholars in their fields. These Bureau associates concentrate on four types of empirical research: developing new statistical measurements, estimating quantitative models of economic behavior, assessing the effects of public policies on the U.S. economy, and projecting the effects of alternative policy proposals.Access to the NBER Working Papers is restricted to UC Davis IP Addresses only.

Tags: Economics

U.S. Department of Education site for educational statistics. Link to data tools, tables and figures, fast facts, publications and more from NCES home page. Data includes school district data, educational assessment, and public library data.

Related: Link directly to popular annual reports with statistical data: Digest of Education Statistics, Condition of Education, Indicators of School Crime and Safety, and Projections of Education Statistics.

National Center for Health Statistics data center. Data by topics, eg., births, deaths, disease. Links to CDC Data Warehouse for access to health statistics and data including vital statistics, detailed data sets, and survey data.

Related: NCHS Data Access

Tags: Medicine

National Criminal Justice Reference Service (NCJRS) is a federally funded resource offering justice and drug-related information to support research, policy, and program development worldwide. Includes summaries of U.S. criminal justice publications, including Federal, State and local government reports, books, journal articles, and other research with links to some full text reports.

Search the Abstracts Database.

Coverage: Early 1970's-present
Tags: Criminology, Law

Free online digital media library from US F&WS. Wide assortment of selected images, publications (including historic documents, oral histories and more), video and audio clips, and maps that are in the public domain.

Comprehensive resource on politics and policy for the academic community. Includes: National Journal (non-partisan weekly journal on politics), Almanac of American Politics, The Hotline (tracks American politics and campaigns with coverage of each day’s events), Ad spotlight (tracks televised political ads), CongressDaily (twice-daily insight on developments and key players in Congress), Markup reports (committee meetings on key bills), Technology Daily, Poll Track (database of over 5,000 public opinion surveys), Earlybird (the morning’s top news stories and editorials), and Daybook (schedules of House, Senate and other events).

Coverage: National journal 1977-; other coverage varies by section.
Tags: Government, Politics, United States Of America