A Diplomacy Map for Computer Displays
It is topologically equivalent to Avalon-Hill's map. It is on a uniform grid with vertical and horizontal lines. All land regions are strictly rectangular.
Automated Online Mapper
Observes games and produces maps automatically. Easy-to-use web interface. Powerful searches of the JDPR data base.
Net'Mapper
A java applet to generate map positions from internet judge results. Supports standard, modern and youngstown variants.
Realpolitik
A cross-platform tool for displaying, adjudicating and tracking games and variants. Features downloads, manual, and forums.
Roy Addison's Diplomacy Maps
All of these maps may be used with Gary Pennington's DipChief mapping program.