Following up on a meeting held in September 2011 that focused on the synergisms and common interests spanning both the Annotation Ontology1 and Open Annotation Collaboration2 projects and communities, the projects jointly moved forward in December 2011 to establish a W3C Community Group3 to facilitate the reconciliation and merger of their respective annotation interoperability data models and vocabularies. In January 2012 the Andrew W. Mellon Foundation then awarded the University of Illinois (on behalf of the Open Annotation Collaboration) a grant of $29,500, providing the additional wherewithal required to realize this goal. We report here on the results of this grant.