OER Knowledge CloudJournal Article20092009/04Koohang, AlexHarman, Keithsustainabilityscalabilityinstructional designdecentralizationbest practicesenIEEE Photonics Technology Letters218C3 - C31041-1135This paper discusses the concept of Open Educational Resources (OERs). The discussion then shift to OER sustainability, a fundamental element essential for the success of OER. Special attention is given to the following as they relate to the OER sustainability: instructional design & presentation; cost of production and maintenance; support; and OER communities of practice as relate to scalability. The paper concludes with recommendations for OERs future research.10.1109/LPT.2009.2020494http://proceedings.informingscience.org/InSITE2007/IISITv4p535-544Kooh275.pdfhttp://proceedings.informingscience.org/InSITE2007/IISITv4p535-544Kooh275.pdf