UH System

Hamilton Library [UH Manoa]
Honolulu Community College Library
Institute for Astronomy Library [UH Manoa]
Kaua'i Community College Library
Kapi'olani Community College Library
Leeward Community College Library
Maui Community College Library
Pacific Regional Planetary Data Center, Hawaii Institute of Geophysics and Planetology [UH Manoa]
School of Public Health Library [UH Manoa]
Sinclair Library [UH Manoa]
Transportation Library Department of Civil Engineering [UH Manoa]
William S. Richardson School of Law Library [UH Manoa]
Windward Community College Library

Other Libraries

Hawai'i State Public Library System and its online catalog

Bishop Museum Library 
Brigham Young University Hawai'i Campus - Joseph F. Smith Library 
Chaminade University - Honolulu

Hawai'i Legislative Reference Bureau Library - includes Hawaii Directory of State, County and Federal Officials; information about the current legislative session, ACCESS: Hawaii Legislative Information Service, and more

Hawai'i Business Research Library

Hawai'i Medical Library

Hawai'i Pacific University Libraries and Learning Resources
Hawai'i Sheet Music Index

Hawaii State Archives