This case study reviews the emergence and evolution of eCore (the University System of Georgia's electronically delivered undergraduate core courses) over eight years and summarizes the issues, ongoing challenges, and lessons learned from interinstitutional collaboration in offering and administering a "virtual" shared core. The bulk of the literature for online education has focused on issues of teaching and learning online; much less research has focused on the development and administration of online courses and programs (Lasseter, 2008). This case study is informed by the authors' previous research into online education and by eight interviews with administrators at participating "affiliate institutions" and the primary administrative units. Those interviewed held significant positions with the eCore program, and many had been involved since its inception. Of primary interest is the evolution of the virtual core, the management of the collaborative, and issues and challenges that arose from distributed responsibility and accountability. (Contains 1 figure.)