The game is a low graphic (SVG) strategic game. Each server represents a Game Domain with its players. All servers should be able to talk to each other, as players can move (in the game) from domain to domain/send ‘diplomatic messengers’ etc..
We have chosen this idea as it enables us to enlarge the world map endlessly, it enables second parties to connect their game servers to us and those enlarge the world even more. If one server (and its backups) fails, the game will still continue to run (a real distributed environment).
We are only at the beginning. What are the platforms out there which we should look at, that will help us develop such a world?
XMPP, previously known as Jabber, might be a good place to start.