Check out these cool new (to me) Google Map mashups:
- ZIP Code Boundary Map: displays the boundary of any ZIP code on a Google Map
- State Quarters Map: each state that has its own quarter has a marker that leads to an image and more information from the U.S. Mint
- U.S. Presidential History: shows the birthplaces of U.S. Presidents and their First Ladies
- PackageMapper: uses Google Maps to track packages that have been shipped using FedEx, UPS or the US Postal Service
