google maps

I used Google maps to track all the cities I have lived in since I was born. It was fun to zero in on small towns on the maps and then place my marker.

http://maps.google.com/maps/ms?ie=UTF8&hl=en&msa=0&msid=100087707258484968105.00044c95caaecdc87b626&z=5

You could use these maps to trace ancestry, show your children where you lived, etc.