Maps have long been important in politics, as anyone who works in politics or watches the TV coverage on election night knows. And then there's the familiar saying, "All politics is local." Now, as reported on the Google Earth Blog, Google Earth has added "U.S. Elections Guide" and "U.S. Congressional Districts" information layers. By selecting these layers in Google Earth (not available on Google Maps) you can see boundaries of U.S. voting districts, links to information and news about the candidates, where to vote, campaign finance data and other election-related information.
Map-based real estate site HotPads has also created an interactive elections map for the coming November election. Click on any state and you can drill down on U.S. Congressional districts and information on representatives from Wikipedia and other sources. Here's an example from Florida.
I'm sure there are more out there. Let us know if you find them.