%C Richmond, Va. %A Tamar Sadeh %A Mark Dehmlow %A Paul Asay %X Tamar Sadeh, Ex Libris; Mark Dehmlow, Electronic Services Librarian, University of Notre Dame/Michiana Academic Library Consortium; Paul Asay, Systems Programmer, Indiana State University Libraries Today, proprietary and open source software can and do coexist and complement each other. Constrained by limited resources, libraries can do more and offer more if they start with functionally rich products and build from there. The Ex Libris open platform program provides a framework in which open source code developed by the library community is integrated with robust, vendor-supported software. The result is a groundbreaking environment that is achievable and affordable in both the short and the long run. %L eluna184 %D 2009 %T Ex Libris Open Platform Program and EL Commons