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Updated 11:00 AM March 8, 2004



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U-M expands access to hidden electronic resources with OAIster

A repository of information that provides links to previously difficult-to-locate electronic scholarly resources will be widely available under a new agreement between U-M and Yahoo! Inc.

The repository—developed through the University Library's OAIster Project—is available through Yahoo!'s Content Acquisition Program (CAP) and accessible through Yahoo! Search.

OAIster offers information that links to hidden digital resources such as the complete contents of books and articles, technical reports, preprints (unpublished works that have not yet been peer reviewed), white papers, images of paintings, movies, and audio files of speeches.

Many of the scholarly collections included in OAIster were not indexed previously in popular Web search services and remained hidden from those who need the resources for their research. By enabling access through Yahoo!'s CAP program, these materials will be available to an international audience of scholars, students, researchers and enthusiasts.

OAIster retrieves these elusive resources by tapping directly into the collections of a variety of institutions using harvesting technology based on the Open Archives Initiative (OAI) Protocol. U-M's OAIster service provides access to more than 3 million harvested records describing and pointing to these resources. Currently, the resources are created and hosted by 267 research libraries and institutions from around the world.

OAIster provides a direct link to an actual digital object—an image, book, document—not just a catalog or descriptive information. Examples of some of the collections currently available through OAIster include: the Eprint Archive (an archive of physics research); Carnegie Mellon University Informedia Public Domain Video Archive; Ethnologue: Languages of the World; Library of Congress American Memory Project; and Caltech Earthquake Engineering Research Laboratory Technical Reports.

CAP enables Yahoo! Search to expand the breadth and depth of content users can access. In addition to OAIster, other participants in CAP include National Public Radio; Northwestern University; Library of Congress; The New York Public Library; Project Gutenberg; the University of California, Los Angeles; and National Science Digital Library.

For more information about Michigan's OAIster Project, visit or contact Katrina Hagedorn at For more information about Yahoo! Search or CAP, contact Sumir Meghani of Yahoo! Inc. at

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