The Orbis Cascade Alliance and OCLC are working together to migrate the Alliance's Summit union catalog to a consortial borrowing solution based on the integration of WorldCat.org, VDX, WorldCat Resource Sharing and a new circulation gateway in time for the beginning of the 2008-2009 academic school year. The Orbis Cascade Alliance will implement a WorldCat Group Catalog with an interface based on WorldCat.org. This union catalog will present the 28-million-volume collections of the 35 Alliance member institutions at the top of results sets, followed by results from the rest of WorldCat, an online database for discovery of items in libraries. The migration of Summit to OCLC's consortial borrowing solution will include an immediate initiative to increase the accuracy and comprehensiveness of member library holdings in WorldCat and the implementation of a resource sharing system that combines ILL and circulation capabilities and workflows. Alliance member libraries also will have the option to implement WorldCat Local, a new service that combines OCLC member libraries worldwide with the ability to customize WorldCat.org as a solution for local discovery and delivery services.