The goal of the Historical Society of Pennsylvania's "Hidden Collections Initiative for Pennsylvania Small Archival Repositories" (HCI-PSAR) is to make better known and more accessible the largely hidden collections at small archival repositories in the five-county Philadelphia region. These include volunteer-run historical institutions, museums, fraternal and ethnic organizations, community groups, churches, clubs, and other non-profit organizations with important archival collections. The project is funded by a grant from the Andrew W. Mellon Foundation.