I've seen a couple people post their Minecraft servers here, so I thought I'd post mine here too.
It's Towny on an Earth map, with dynmap and updating borders. The main goal of the server is to make a town/join one, expand, make/join a nation, make shops for people to buy at and eventually go to war/defend yourself or you can pay a fee to be neutral and avoid war. Shops are physical and player made, and the economy is player made. The currency is gold ingots, which is also physical and is mined. Your borders are displayed on the dynmap:map.vmcraft.me
IP: play.vmcraft.me