The Online Map Viewer is built using Ruby on Rails on the server side and ExtJS for the web interface. Authentication is done using OpenID to provide a secure, distributed and single-sign-on access to the application. Google Maps is used to visualize GIS data, project locations and satellite imagery that is provided through the GINA/SDMI WMS services. These sites are running on multiple Linux servers using CentOS 5.3 as the Operating System along with Apache, PostgreSQL/PostGIS, and Passenger services.