Update (May 2011): Distance measurement is now available in
Google Maps Labs. Just enable "Distance Measurement Tool" and
click the ruler icon at the bottom of the map. If you want to
measure the distance between two or more places, Google Maps can
be pretty helpful. One way to do that is to add the "Distance
Measurement Tool" mapplet and create a path on the map. You can
add as many points as you want and if you make a mistake,
there's an option to delete the last point. Distances can be
expressed in Metric units or English units, but if you're
feeling geeky there are many other less known units you can
choose: Bohr radius, Egyptian remen, nautical mile, Olympic
swimming pool, light-year, PostScript point and more. "My Maps"
can also be used to create personalized maps. Add lines, define
a path and change it by dragging one of the white rectangles
placed on the path. The personalized map can be saved for future
reference, printed, shared with others and embedded in a site.
It's interesting to compare these d