Major Research Tools A to Z

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | W

View all Major Research Tools

For complete lists of research tools, see Research Tools by Subject


Coverage: 1935-present.

A searchable annotated bibliography of articles, books and reports on Latin America. Produced by the Library of Congress.


Coverage: 1857-1912.

Full text of Harper's Weekly with extensive indexing of articles, illustrations, and advertisements.

Full-text, Index

Digital repository of books and other materials from research libraries across the country. Full text of works in the public domain can be searched and viewed. The full text of works still in copyright can be searched but not be viewed.


A monthly abstract journal, covering the literature on all parasitic helminths.


Digitized collection of Spanish-language newspapers printed in the U.S. during the 19th and 20th centuries. Includes many titles published bilingually in Spanish and English.


Coverage: 1972-2013

Annual collection of primary sources covering significant events of the year. Includes materials such as speeches, international agreements, and reports from governments, NGOs, and other organizations. Each document is preceded by an introduction providing context and background.


Time period covered: 1450 to present; Publication coverage: 1954 to present.

Indexes journal articles, book reviews, and dissertations on the history of the world, except the United States and Canada. Subjects include diplomatic history, economics, international relations, and political science.


Demographic, economic, and social statistics of the United States from colonial times to the end of the 20th century. Data can be searched, downloaded, and graphed.

Data, Gateway

Coverage: 1790 to 2010.

The National Historical Geographic Information System provides, free of charge, aggregate census data and historically accurate GIS-compatible boundary files for the United States between 1790 and 2010. Users must register to download data.


Profiles of public and private companies in the U.S. and other countries. Also includes financial and corporate directory information, business news, and stock quotes.


Coverage: 1907-1984

Index of major journals in the humanities and social sciences