In January 2000, the University of California created the Shared Cataloging Program (SCP). Based at the University of California, San Diego, the SCP is a “centralized cataloging model” for the California Digital Library consortium collections. This article will take an evolutionary look at the perpetual challenges of sustaining a consortial cataloging model and highlight the efforts of the SCP in the ongoing quest to eliminate the redundancy of efforts by centralizing the optimization of cataloging efficiency.