OCLC is introducing the Expert Community Experiment, which enables cataloging members to make more changes to WorldCat records. During the Experiment, members with full-level cataloging authorizations have the ability to improve and upgrade WorldCat master records. The Experiment begins in February 2009 and lasts six months. OCLC is offering several introductory web information sessions in February. Please see the Expert Community Experiment information webpage for more information, and to register for one of the sessions: http://www.oclc.org/us/en/worldcat/catalog/quality/expert/default.htm