Frederick Community College Library | Catalog
Frederick County Public Libraries | Catalog
Hood College Library
Johns Hopkins University Libraries | Catalog - includes Eisenhower Library, the Friedheim Library at Peabody Conservatory, the SAIS Library (School of Advanced International Studies in Washington, D.C.), the Applied Physics Laboratory Library, and the Welch Medical Library.
SAILOR - is Maryland's Online Public Information Network, providing Maryland residents with access to Internet resources, including state and local government files.
University of Maryland at Baltimore, Health Sciences and Human Services Library | Catalog
University of Maryland, College Park Libraries | Catalog
LibDex - Worldwide directory of library home pages and online catalogs.
New York Public Library | Catalog
WorldCat.org - Allows free searching of the collections of libraries around the world.