Serials Solutions ( www.serialssolutions.com ), a business unit of ProQuest, has added several new content providers and a new library beta development partner for its Summon unified discovery service. The service is being developed in close cooperation with library beta partners, with a goal of not only bringing the researcher back to the library but providing a channel for greater return on the library's content investment. The new partner, Western Michigan University, which will use the Summon service with its VuFind next-generation catalog, joins Dartmouth College, Oklahoma State University, University of Sydney, and University of Liverpool in providing feedback that will refine all aspects of the service. New content providers include IEEE, the pre-eminent engineering society, information technology publisher IGI Global, international scholarly publishing leader Brill, and a pair of Australian presses that expand the service's local coverage. The Summon service's cont...