Stanford maintains a campus-wide site license agreement with Environmental Systems Research Institute (ESRI) that is paid and managed by Stanford University Libraries for the benefit of the entire university. The site license gives the Stanford community unlimited number of seats of ESRI software for teaching, research, or administrative purposes.
ArcGIS 10.1 users: The previous version, ArcGIS 10.1, may be downloaded from the ArcGIS 10.1 Software Download page.