Databases & E-Reference Materials

A comprehensive and up to date database of organic compound chemical, physical, and structural data.

A guide to the key terms and abbreviations used in psychological testing, assessment, and measurement. Over 3,000 definitions offer explanations of statistical procedures commonly used in psychology; major psychometric and other psychological tests; categories of mental illness, mental disability, and brain damage; frequently used medical terms; basic neuroanatomy; and types of psychological therapies.

This dictionary contains over 9,000 entries on all aspects of science and provides comprehensive coverage of biology, chemistry, physics, the earth sciences, and astronomy. Appendices cover the periodic table, geological time scale, and animal and plant classification. Also featured are short biographies of leading scientists and chronologies of specific subjects, including plastics, electronics and cell biology.

The Dictionary of Statistics & Methodology: A Nontechnical Guide for the Social Sciences is a sourcebook of definitions and explanations of statistical and statistics-related concepts in the social and behavioral sciences.

The Dictionary of Synonyms in Japanese classifies the basic vocabulary of 25,000 words used in everyday life into 6,000 groups, showing common meanings, practical examples, and the correct usages of words. Words are shown in 1,700 synonym comparison tables and easy-to-understand differences in meanings and usages of words are indicated by the use of example sentences, compound word examples, and descriptions of the correct usages of words. English expressions matching the synonyms are also shown where appropriate.

Die Transvaler was established as a newspaper to promote the cause of Afrikaner nationalism within the Afrikaner-dominated National Party in South Africa. This newspaper was notorious for its racism and antisemitism and was edited by Hendrik Verwoerd, future prime minister and architect of the apartheid regime. This archive is a valuable resource for scholars of African studies, history, politics, war, genocide, apartheid, and the media. 

International digital repository for the digital records of archaeological investigations. Registered users (registration is free) may download and bookmark resources.

The DNSA collection is the most comprehensive collection available of significant declassified U.S. government documents central to U.S. foreign and military policy since 1945. OU Libraries provides access to four sub-collections relating to Latin American policy and human rights, including El Salvador: The Making of U.S. Policy, 1977–1984; El Salvador: War, Peace, and Human Rights, 1980–1994; Nicaragua: The Making of U.S. Policy, 1978–1990; and Death Squads, Guerrilla War, Covert Operations, and Genocide: Guatemala and the U.S., 1954-1999.

Provides access to browse and freely download more than 6,300 eBook titles available on DPLA's Open Bookshelf. Includes classic novels, children's books, textbooks, and non-English titles.

Presents full-text literary criticism on the works of dramatists of all nations, cultures, and time periods. Critical essays are selected from leading sources, including published journals, magazines, books, reviews, radio transcripts, diaries, newspapers, broadsheets, pamphlets, and scholarly papers.