From an OCLC press release:
OCLC now offers Metadata Services for Publishers to enhance title metadata for use in the supply chain
Service makes publisher metadata available to libraries earlier in selection, acquisition and technical services process
DUBLIN, Ohio, October 14, 2009—OCLC now offers Metadata Services for Publishers, a new service that takes publishers’ ONIX title metadata, enriches it using WorldCat mining and mapping techniques, and delivers the enhanced ONIX metadata back to the publishers for use in their systems. The publishers’ enhanced metadata is then made available early in the data creation process to libraries for use in selection, acquisition and technical services workflows. Information seekers also benefit from Web discovery of this metadata via WorldCat.org, the Web destination for discovery of library resources.