Dr. Thomas H. Baker is a Project Leader for Digital Libraries at the Birlinghoven Library of Fraunhofer-Gesellschaft in Bonn. As a partner in the EU-funded projects SCHEMAS and CORES and head of the Usage Board of the Dublin Core Metadata Initiative, he is interested in the development of open standards for metadata and related registry infrastructures.

Rebecca Guenther is Senior Networking and Standards Specialist in the Network Development and MARC Standards Office of the Library of Congress, where she has worked since 1989. Her current responsibilities include work on national and international information technology standards, including ISO and NISO information standards. She serves as rotating chair of ISO 639 Joint Advisory Committee on language codes and as a member of the National Information Standards Organization's Standards Development Committee. Rebecca has worked in the area of metadata since the early 1990s, including maintaining a number of crosswalks between various metadata schemes; contributing to the development of XML bibliographic description standards (Metadata Object Description Standard and MARCXML); serving as chair of the DCMI Libraries Working Group and as a member of the DCMI Usage Board; serving as a co-chair of PREMIS, an OCLC/RLG sponsored working group on preservation metadata implementation strategies; and, participating as vice-chair in the Open Ebook Forum's Metadata and Identifiers Working Group, among others.

Rachel Heery works for UKOLN as Assistant Director leading the Research and Development team. She has undertaken research over recent years in the field of metadata, resource discovery and information architectures. Rachel has a particular interest in schema registries and application profiles which have been central to the recent SCHEMAS, CORES and MEG registry projects. Rachel has been active in the development of the Dublin Core, co-chairs the DCMI Registry Working Group, and is a member of the Dublin Core Advisory Board.

Mary Lee Kennedy is director of the Knowledge Network Group (KNG) at Microsoft Corporation. KNG is responsible for Microsoft's information excellence program, two enterprise information portals (Microsoft Web and Library), site information services, shared services such as search and taxonomy, and content services such as news and the corporate archives. Kennedy has been interviewed and published in CIO Magazine, Bloomberg News, Internet Library Trends, PC Week and Information Week, as well as being a frequent speaker at knowledge and information-related conferences.

Professor Neil McLean is Director of IMS Australia and is based at Macquarie University. He joined Macquarie University in 1990 and was University Librarian from 1996 to the end of 2001. Prior to returning to Australia in 1990, he was Head of Library Services at the Polytechnic of Central London (now University of Westminster) and Director of the United Kingdom Library and Information Technology Centre.

Ed O'Neil joined the staff at the Office of Research, OCLC Online Computer Library Center, as a Senior Research Scientist in 1983, serving as co-acting Director of Research from 1993 until 1994. Since 1990 he has been Consulting Research Scientist. Dr. O'Neill did his graduate work at Purdue University in Operations Research. He was a faculty member in the School of Information and Library Studies at the University at Buffalo and was later Dean of the Matthew A. Baxter School of Library and Information Science at Case Western Reserve University. His research interests include authority control, subject analysis, database quality, preservation, collection management, bibliographic relationships, and Web characterization.

Andy Powell has been involved with the Dublin Core Metadata Initiative one way or another since 1996 - which basically means that he has done his time and should be put out to pasture! He developed the Web-based metadata generator and editor, DC-dot, which has been widely used internationally and the metadata help utility DC-assist. He is a member of the DCMI Advisory Board, the DCMI Usage Board, co-editor of the "DCMI Namespace Policy", co-author of the "Guidelines for implementing Dublin Core in XML" recommendation and author of the "Expressing Qualified Dublin Core in HTML/XHTML meta elements" working draft. Andy is an Assistant Director of UKOLN at the University of Bath, where the bulk of his work is concerned with the specification and deployment of distributed systems architectures supporting resource discovery.

Andrew Wilson is Assistant Director, Preservation, at the National Archives of Australia where he leads a digital records preservation project. He joined the National Archives in 1989 and has worked extensively in the area of metadata, implementing AGLS in Australian Government agencies and drafting the Australian Standard 'AS 5044, the AGLS Metadata Element Set'. Andrew is a member of the DCMI Usage Board and has been co-chair of the DC-Governments Working Group since 2000.