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Databases > O
OAK Search

This search portal is drawing from a number of open access collections, including those listed below. •BioMed Central •arXiv •DataCite •Directory of Open Access Journals •HathiTrust •Project Gutenberg •Public Library of Science (PLoS) •Research Papers in Economics (RePEc) •Institutional Repositories at Harvard, Iowa State, University of California system, and many others.

Oceanic Abstracts

Indexes and abstracts the worldwide technical literature pertaining to the marine and brackish water. Focuses on marine biology and physical oceanography, fisheries, aquaculture, non-living resources, meteorology and geology, plus environmental, technological, and legislative topics.

On the Boards

High-quality videos of full-length performances by some of today’s most provocative artists working in dance, theater, music and other forms that defy categorization.

Open Education North Carolina Collection

A curated collection of free textbooks for 30 of the most frequently-taught courses across North Carolina’s 2 and 4-year colleges and universities.

Open Library NC

This e-book collection is made available to North Carolinians through a collaboration between the Internet Archive and NC LIVE. The e-books in this collection are digital scans of books contributed by libraries across the country, including many North Carolina Libraries.

Opera in Video

Opera in Video contains opera performances, captured on video through staged productions, interviews, and documentaries. Selections represent the world’s best performers, conductors, and opera houses and are based on a work’s importance to the operatic canon.

Opposing Viewpoints In Context

Includes pro/con viewpoints, reference articles, interactive maps, infographics, and more. A category on the National Debate Topic provides quick and easy access to content on frequently studied and discussed issues. Periodical content covers current events, news and commentary, economics, environmental issues, political science, and more.

OregonPDF in Health & Performance

Oregon PDF in Health & Performance, a non-profit foundation, cooperates with colleges and universities throughout the world to make available graduate dissertations and theses in areas related to health and performance.

Osler Library Prints Collection

The Osler Library Prints Collection brings together a rich variety of visual documents related to the history of medicine, spanning several centuries, countries, and artistic media. Ranging from the seventeenth to the twentieth century, the collection consists predominantly of prints, though it also includes some photographs, drawings, posters, and cartoons.


Includes monographs, proceedings, reports, doctoral dissertations, master's theses and retrospective collection of Occupational Therapy journals and newsletters held in the Wilma L. West Library, a national clearinghouse of occupational therapy information for AOTA members and personnel.


OTseeker is a database that contains abstracts of systematic reviews and randomized controlled trials relevant to occupational therapy. Trials have been critically appraised and rated to assist you to evaluate their validity and interpretability. These ratings will help you to judge the quality and usefulness of trials for informing clinical interventions. In one database, OTseeker provides you with fast and easy access to trials from a wide range of sources.


OVID is an interface for several different databases including Medline, EBM Reviews, Health and Psychosocial Instruments, HealthStar, and ECUJournals.

Oxford Art Online

Oxford Art Online offers users the ability to access and search the vast content of Grove Art Online, Benezit Dictionary of Artists, and other Oxford art reference in one location.

Access is limited to 1 user at a time.

Oxford Bibliographies - Music

This resource combines the best features of a high-level encyclopedia. Articles written and reviewed by top scholars in the field.

Oxford Dictionary of National Biography

The Oxford Dictionary of National Biography online offers biographies of deceased persons who have contributed significantly to life in the United Kingdom.

Access is limited to 1 user at a time.

Oxford English Dictionary

The Oxford English Dictionary is the accepted authority on the evolution of the English language over the last millennium. It traces the usage of words through quotations from a wide range of international English language sources. Covers words from across the English-speaking world, from North America to South Africa, from Australia and New Zealand to the Caribbean. Offers the best in etymological analysis and in listing of variant spellings, and it shows pronunciation using the International Phonetic Alphabet.

Oxford Handbooks Online

A collection of handbooks that provide coverage of topics across many disciplines. Each volume contains articles by scholars reviewing key issues in subject area.

ECU subscribes to all available collections in the fields of Archaeology, Classical Studies, History, Linguistics, Literature, and Music.

Oxford Islamic Studies Online

Brings together the best current scholarship in the field and promotes accurate and informed understanding of the Islamic world. Features reference content and commentary by renowned scholars in areas such as global Islamic history, concepts, people, practices, politics, and culture.

Access is limited to 1 user at a time.

Oxford Music Online

Full text of The New Grove Dictionary of Music and Musicians, The New Grove Dictionary of Opera, and The New Grove Dictionary of Jazz. Part of Oxford Music Online, which also contains the Encyclopedia of Popular Music, the Oxford Dictionary of Music and the Oxford Companion to Music. Selected articles from New Grove Dictionary of American Music.

Access is limited to 1 user at a time.


Articles analyzing economic and political developments worldwide from Oxford Analytica.