This sounds like an interesting development out of OCLC:
“In response to requests from the cataloging community, 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 more WorldCat master records than has been previously possible. The Experiment begins in mid-February 2009, and is expected to last six months.
Introductory web information sessions will be held throughout February for those interested in participating in the Experiment.
Please see the Expert Community Experiment page to register to attend a web sessions. More information will be added to this page over the next few days.”
Glenn E. Patton, OCLC, Director, WorldCat Quality Management