The Extreme Science and Engineering Discovery Environment (XSEDE) is an NSF-funded virtual organization that integrates and coordinates the sharing of advanced digital services - including supercomputers and high-end visualization and data analysis resources - with researchers nationally to support science.Digital services provide users with seamless integration to NSF's high-performance computing and data resources. XSEDE's integrated, comprehensive suite of advanced digital services combined with other high-end facilities and campus-based resources, serve as the foundation for a national cyberinfrastructure ecosystem.