David Percy has been the Geospatial Data Manager for Portland State University’s Geology Department since 1998, and for the Institute for Metropolitan Studies since March 2010. Before PSU, he spent 15 years as a database manager and programmer/analyst in the field of medical research. Since 1999 he has taught technology courses related to GIS, including GIS for the Natural Sciences, GIS Programming and Web GIS at the university. He is actively involved in international data standards regarding geospatial data transmission through the Commission for the Management and Application of Geoscience Information. He is actively involved in the Open Source GIS movement through OSGEO and is a collaborator on a web-mapping framework named Map-Fu. His work in the domains of glaciology, coastal studies and web mapping has been published in several journals and open file reports. Percy has degrees in Geology and Economics.