ESRI released ArcExplorer 3.1, a GIS data viewer. ArcExplorer 3.1 allows access to the Geography Network, allows users to set the transparency for an image or image map service, integrates local data with data from an ArcIMS spatial server, offers cross-platform support and accesses restricted ArcIMS map services with a user name and password. (ESRI, Redlands, Calif.)