What is ORE anyway?, see description of the Open Annotation Group: http://www.openannotation.org/resources.html
How to use OAI-ORE in digital libraries see: http://hochstenbach.wordpress.com/2008/05/03/understanding-the-oai-ore-data-model/
Harvesting RDF with OAI? see: https://wiki.ucar.edu/display/esgcet/RDF+Harvesting