To cite this work, please use the following citation instead of the web page.
F. Wang, G. von Laszewski, G. C. Fox, T. R. Furlani, R. L. DeLeon, S. M. Gallo, "Towards a Scientific Impact Measuring Framework for Large Computing Facilities - a Case Study on XSEDE", to appear in Proceedings of the Conference on Extreme Science and Engineering Discovery Environment: Gateway to Discovery (XSEDE '14), Atlanta, Georgia, July 13 - 18, 2014.