My name in Ikariam is jen_of_wildfire here, and I'm in USMC.

I have 5 towns with all of the resources represented:

Pyropolis [20:41] Sulfur
Central [17:39] Marble
Margaritaville [20:42] Wine
Crystopolis [20:44] Crystal
Resembool [20:40] Marble (this is my newest town)

Right now, I overproduce Sulfur, so, I'll start offering it to the alliance as a whole. If I start overproducing anything else, I'll start offering it, as well.

As for why I joined, it's to keep up with the latest news in the alliance, and to stay in accordance with the rules of the alliance.