The Open Annotation Community Group (OACG) is one of the 129 groups of interests within the World Wide Web Consortium (W3C) community and OACG's purpose is to work towards a common, RDF-based, specification for annotating digital resources.

The group's activities emanates from two proposals that have emerged over the past two years: the Annotation Ontology and the Open Annotation Model. The final delivery of this group of interest is a specification.The second edition of the 'specification' has since been published and can be read here.

The Open Annotation Data Model which specifies an interoperable framework for creating associations between related resources, annotations, using a methodology that conforms to the Architecture of the World Wide Web is being publicly promoted.

During the OAI8 Conference in Geneva (Switzerland) last week, the chairs of the community group, Robert Sanderson and Paolo Ciccarese, discussed the data model motivated by scholarly communication use cases for annotation. These include open peer review, nano-publications, personal note-taking, teaching and learning systems, resource organization and many others. They also presented the current status of the work, and the next steps in the standardization process.

You can access to the slides and PDF of the presentation from the OAI8 website.

Visit the group for more information http://www.w3.org/community/openannotation/