Automatic metadata generation for resource discovery. This research exercise was carried out for JISC in 2006. Aimed to establish the state of the art regarding machine extraction and generation of metadata. Considered the whole range of metadata: descriptive, technical, rights, preservation, subject, LOM, etc. Embraced both intrinsic and extrinsic metadata. Extrinsic metadata tools show rapid development. The majority of tools use a controlled vocabulary or other subject authority.