Library Catalogs
Library of Congress online catalog
Library of Congress Authorities
Using Library of Congress Authorities, you can browse and display authority headings for Subject, Name, Title and Name/Title combinations.
Sage Library System
A consortial catalog of 76 (academic, public & school) member libraries in 11 counties in eastern Oregon.
SUMMIT: The Orbis Cascade Alliance union catalog
Summit is a library catalog that combines information from Pacific Northwest academic libraries into a single unified database.
WorldCat
WorldCat.org lets you search the collections of many libraries throughout the US & the world.