Stephen J. Ventura is Professor of Environmental Studies and Soil Science at the University of Wisconsin-Madison. He is also Chair of the Department of Soil Science and Director of the Land Information and Computer Graphics Facility, a center for GIS research and technology transfer.  He is the Editor-in-chief for URISA Journal, a past-president President of the Wisconsin Land Information Association, and a UCGIS delegate since its inception.  Research interests include land records modernization, PPGIS, and GIS for land use planning and management.  He has also worked on applications of GIS in landscape process modeling and in environmental and resource management issues such as non-point source pollution, groundwater contamination, precision agriculture, vegetation mapping, land evaluation, and invasion of exotic species.