- Harvard Libraries
- Links to all Harvard libraries as well as access to online catalogs. - Dumbarton Oaks Research Library and Collection - Offering research resources in the areas of Byzantine studies, the history of landscape architecture, and Pre-Columbian studies. Located in Washington, DC. Online resources and research tools.
- Harvard Archives - Repository for records and papers relating to the history of the institution. Information on collections, online resources, and guidelines for donors.
- Harvard Geospatial Library - A collection of more than 6,000 worldwide and regional geographic data layers, scanned historic maps, and associated descriptive information that can be searched, mapped, and downloaded for use with GIS software.
- Library Preservation - Includes site describing conservation and preservation initiatives for university collections, services offered by the department, guidelines and resources for preservation, and disaster recovery plans.