A DigitalPoint Forums member shares information about a Google Maps/Google Earth mashup that shows the current tracking status of a package, including, for his purpose, Google Adsense Checks. The service, called PackageMapping, allows you to see which cities your packages gone through in order to reach their destination.
Screenshots of this system in action can be seen below:
This is a really cool and practical purpose for a Google maps mashup, especially since I've seen some pretty interesting tracking results in the past. The only thing I noticed so far is that USPS tracking doesn't seem to be working correctly and it keeps assuming that the USPS tracking number I enter is a Fedex tracking number when it is not.
What do you think about it? Discuss at the DigitalPoint Forums.