This study reports on the results of interviews conducted in December 2009 and January 2010 to identify innovative service trends in library and information services in the government and corporate arenas. The study was undertaken as part of a Library and Archives Canada (LAC) research project to inform the Government of Canada Assistant Deputy Ministers Task Force (ADM Task Force) on the Future of Federal Library Service in gaining a better understanding of future-oriented service delivery models adopted by corporate and government libraries. The study began with a thorough review of relevant literature as well as conference presentations and proceedings, webinars, listservs, and blogs. This review yielded myriad service delivery models in place in private and public sectors--models that were then used to design the interview. Corporate and government libraries recognized by the library sector as "innovative" based on the libraries' long-term success and demonstrated ability to successfully initiate progressive services were identified. Eighteen of these libraries, in Ontario and British Columbia, Canada; Singapore; Australia; and the U.S., were selected, and all agreed to be interviewed. Nine were categorized as "public sector" (i.e., organizations managing published information in government departments, government agencies, legislatures, or congresses or as national libraries), and the other nine were categorized as "corporate" (i.e., organizations managing published information in for-profit organizations from the professional services, pharmaceutical, legal, and financial sectors). The interview structure matched the "building blocks" for service models defined by the ADM Task Force--E-Library, E-Services, Digitization, Physical Space, Technology, and Procurement--and probed the specific services that the interviewees offer in each "block." This structure was also used to frame the findings. At present (spring 2011) plans are being developed to test the delivery of clustered (based on groups of libraries with overlapping subject interests) and centralized (generic back-end services available to all) services as options that will leverage library professional expertise to benefit the Canadian public service. (Contains 2 figures.)