A major milestone for the HathiTrust partners was reached on April 27, 2009 as we released a temporary beta catalog for the digital library, offering bibliographic search (title, author, subject, ISBN, publisher, and year of publication) and faceted browse of all items in HathiTrust. The catalog is built using the open source VuFind software and is temporary, pending the release of permanent catalog to be built by OCLC in conjunction with a HathiTrust partner team. The permanent catalog will be an implementation of WorldCat Local, and is scheduled for release in early 2010.
Instructions on getting started with searching HathiTrust, including catalog and full-text searching options, are available at http://catalog.hathitrust.org.
The official press release for the catalog can be found at http://www.ns.umich.edu/htdocs/releases/story.php?id=7145.