Here's an excellent presentation recently given at the MOBIUS Annual Conference: What's New in Cataloging 2009? [ppt]
Via News from the Catalog Department
Wayne Sanders and Felicity Dykas presented a session at the MOBIUS Annual Conference 2009 on June 3 entitled “What’s New in Cataloging 2009.” They gave a whirlwind tour of changes and pending changes that have taken place in descriptive and subject cataloging standards and in the MARC format. They also reviewed relevant changes that have occurred at places such as the Library of Congress, OCLC, and GPO.