It shows the locations of contributors to the Bush and Kerry presidential campaigns. For some reason that I don't understand, Bush support is shown in red and Kerry support in blue. It's not too surprising to note that the Republicans are spread over rural and small-town America plus some of the big southern cities, especially in Texas. Democrats dominate Los Angeles, San Francisco, New York, Washington, Chicago and, especially, Boston. Just as we would expect.
What's really extraordinary is that we can zoom in in on particular cities and see where the donors reside and indeed read lists of all their names and addresses.
In this map of uptown New York we can observe the concentration of Republican contributors along Park and 5th Avenues. The other side of Central Park is better territory for the Democrats.
As far as I can determine, the top executives of Halliburton do not contribute to the Republican campaign. And yes, there are lots of Democrats in Hollywood.