How are international economics and international politics linked together is discussed in terms of dependency theory.
Clark University maintains a great compendium of economics sites, including the link to the economics joke site in Finland: those wacky economists, a classic of which is:
Three econometricians went out hunting, and came across a large deer. The first econometrician fired, but missed, by a metre to the left. The second econometrician fired, but also missed, by a metre to the right. The third econometrician didn't fire, but shouted in triumph, "We got it! We got it!"