From the Federal Depository Library Program Web Site:
As part of the U.S. Government Printing Office’s (GPO) ongoing efforts to expand the Federal database collection in MetaLib, users can now simultaneously search the Federal Digital System (FDsys) and the Catalog of U.S. Government Publications (CGP) through a single search box in MetaLib via the new predefined search set “GPO Resources”.
The ability to further refine search results has also been enhanced with the release of the “Resources” option. After searching the “GPO Resources” predefined search set, the “clusters and facets” module, available on the righthand column of the screen, allows users to narrow their search by categories, such as topics, dates, authors, and resources.
Direct to MetaLib Database