“Towers are registered with the FCC. We’ve taken the information and compiled it into a searchable database, and displayed it with Google Maps to give you a graphical interface to see towers in your area.”

Plot your GPS tracklog in real time with this Google Maps hack

Personal weather station & webcam overlay on Google Maps. Exports to Google Earth.

yet another Google Maps rough hack/del.icio.us bookmarklet. Use bookmarklet to inject a Google Map… (Unfortunately IE only and buggy)

hack that uses Google’s API to help record distances traveled during a running or walking workout