This map is slightly dated but its absolutely brilliant. The U.S. states have been replaced by the names of the countries with similar GDPs (all numbers from 2007). It just goes to show why the U.S. economy is so important. And every job lost in a state like California or Utah leads to problems in other countries.
Obviously, the population in these states is a lot lower than most of the countries they are compared with it and the average wealth of citizens is a lot higher. Which means, if people stop spending int he U.S. (in a consumer spending driven economy) businesss in China and India start to hurt.
You can find the map at its original link here