Associations and LISTSERVs GIS Associations NEARC Northeast Arc User’s Group. URISA Urban & Regional Information Systems Associations. NACIS North American Cartographic Information Society. ACSM American Congress on Surveying and Mapping. APA American Planning Association AAG Association of American Geographers ASPRS American Society for Photogrammetry and Remote Sensing GISCorps GIS Professionals Volunteering for a Better World GITA Geospatial Information & Technology Association OGC Open Geospatial Consortium, Inc. GIS LISTSERVs Directions Magazine Several software-based discussion lists. Recommended: ArcGIS, ESRI-L, ArcView-L, Idirisi-L.