Noah Brubaker, Library Technology Systems Manager, Krannert Memorial Library, University of Indianapolis Sherri Parker, Coordinator of Library Technology, DePauw University Libraries Super duper mega-aggregate clouds are playing a big role now in the advancement of some of the leading discovery layer systems. Yet, one vendor has chosen a different route, utilizing web service API’s to harvest content from publishers and aggregators. The Private Academic Libraries of Indiana took an in-depth look at some of these leading systems, including Ex Libris Primo, III Encore Synergy, EBSCO Discovery Service, and Serials Solutions Summon, in order to select the best fit for their consortium. Join us to learn what shapes can be found in these clouds and how we weathered our decisions.