Caplan, P. (2003) Metadata fundamentals for all librarians. Chicago, IL: American Library Association Editions.
Wendler, R. (2004) "The Eye of the beholder: challenges of image description and access at Harvard", Metadata in Practice. Chicago, IL: American Library Association.
Baca, M. ed. (1998) Introduction to metadata, pathways to digital information, Getty Research Institute, available at http://www.getty.edu/research/conducting_research/standards/intrometadata/index.html
Collaborative Digitization Project (2006) Dublin Core Metadata Best Practices, available at http://www.bcr.org/cdp/best/dublin-core-bp.pdf
Dappert, A., and Enders, M. (2008) Using METS, PREMIS and MODS for Archiving eJournals, iPres2008, available at http://www.bl.uk/ipres2008/presentations_day1/24_Enders.pdf
Gartner, R. (2007) Metadata for Digital Libraries, JISC, available at http://www.jisc.ac.uk/whatwedo/services/techwatch/reports/horizonscanning/hs0801.aspx
Guenther, R. (2007) Best Practices for Using PREMIS with METS, The Library of Congress, available at http://www.loc.gov/standards/premis/best-practices-premismets-20070809.doc
Hillman, D. (2005) Dublin Core Metadata Initiative Usage Guide, available at http://dublincore.org/documents/usageguide/
Miller, A. (2007) Metadata for Digital A/V Preservation, TAPE-London 2007, available at http://www.bbcarchive.org.uk/pmwiki/uploads/Main/Miller.pdf
National Library of Australia metadata specifications, available at http://www.nla.gov.au/digital/image_meta.html
Categories for the Description of Works of Art (CDWA), http://www.getty.edu/research/conducting_research/standards/cdwa/
The Collections Trust, http://www.mda.org.uk
DIG35, for technical metadata, http://www.i3a.org/i_dig35.html
Dublin Core Metadata Initiative, http://dublincore.org/
Encoded Archival Description (EAD), http://www.loc.gov/ead/ead.html
Getty Union List of Artist's Names, http://www.getty.edu/research/tools/vocabulary/ulan
Library of Congress Authority Files, http://authorities.loc.gov/
Metadata and Encoding Transmission Standard (METS), http://www.loc.gov/standards/mets/
METAe, Metadata Engine Project, http://meta-e.aib.uni-linz.ac.at/
Multimedia Metadata Community Portal, http://www.multimedia-metadata.info/
Queen's (NY) Aqua BrowserLibrary, http://aqua.queenslibrary.org/
Open Archives Initiative, www.openarchives.org
Reports from JISC Metadata Consultancy, http://digitisation.jiscinvolve.org/2008/01/28/reports-from-jisc-metadata-consultancy/
Resource Description Framework (RDF), http://www.w3.org/RDF/
World Wide Web Consortium (W3C), www.w3.org