During the life-time of two UCAI Mellon grants from the Arthur W. Mellon Foundation (from the 2002 inception to the Phase II final report issued in early 2006), the world of standards changed significantly, and not in small part thanks to aggregation projects and organizations with a vested interest in building out the standards infrastructure. The members of the UCAI team and the lessons learned in trying to aggregate visual resources content have been essential in shaping the Visual Resources Association (VRA) Core 4.0 (beta), and particularly its associated XML Schema [5]. ARTstor supported the Getty Trust in creating and testing an XML Schema for encoding a subset of the Categories for the Descriptions of Works of Art (CDWA), aptly titled CDWA Lite [6]. RLG, in its new incarnation as RLG Programs/OCLC, plays an active role in disseminating the use of CDWA Lite among museums