The Cataloger's Reference Shelf is based on 21 MARC manuals and other reference works published by The Library of Congress and frequently accessed by technical services staff. A must see for catalogers!
Dewey.info is an experimental space for linked DDC data. The initial data set available is a
linked data version of the DDC Summaries in nine languages. The intention of the dewey.info prototype
is to be a platform for Dewey data on the Web.