Mid-Atlantic Libraries

• Columbia University: Website | Catalog
• Del:AWARE Digital Library of the First State (Delaware): Website
• Franklin and Marshall College: Website | Catalog
• Frick Art Reference Library (NYC) : Website | Catalog
• Lafayette College: Website | Catalog
• Lehigh University: Website | Catalog
• Metropolitan Museum of Art Libraries: Website | Library Catalog
• Museum of Modern Art Library: Museum Website | Catalog
• New York University: Website | Catalog
• New York Public Library: Website | Catalog
• Pennsylvania State University: Website | Catalog
• Princeton University: Website | Catalog
• Rutgers University: Website | Catalog
• University of Delaware: Website | Catalog
• University System of Maryland (USM) Libraries: Website | Catalog

Other Academic Libraries

• California Digital Library (University of California System): Website | Catalog
• Canadian Centre for Architecture Library: Website | Catalog
• CARL: Colorado Alliance of Research Libraries: Website | Catalog
• Center for Research Libraries: Website | Catalog
• Dartmouth College: Website | Catalog
• Five Colleges (Amherst, Hampshire, Mount Holyoke, and Smith): Catalog
• Harvard University: Website | Catalog
• Library of Congress: Website | Catalog
• Smithsonian Institution: Website | Catalog
• Yale University: Website | Catalog

Libraries Worldwide

• Libweb: "...currently lists over 6500 pages from libraries in over 115 countries." Includes academic, public, national, and other types of libraries.
• Karlsruher Virtueller Katalog: A union catalog of over 75 million items worldwide, including Europe, Russia, Australia, and North America. Especially useful for finding books from libraries and booksellers in Germany, Switzerland, and Austria.
• WorldCat: The OCLC Online Union Catalog. Over 49 million records of books, journals, newspapers, compact discs, films, prints, and other types of material cataloged by libraries around the world. Updated daily.