Have you ever tried to map your last name and the last name of your ancestors? Visit the Geneanet website where you can map any last name. Geneanet is based in France and is especially useful for those who have ancestors in Europe. It is a free site where you can create a tree and search for records.
The last name origin feature is particularly interesting. When I put in my family name of Kunzli (from Switzerland) I got this result:
In this image, it shows the origin of my name is unknown. Note the timeline cursor on the bottom to see the evolution of the last name distribution.
To see this great tool for yourself, visit Geneanet.org and click “More > Origin of Last Names” in the menu bar at the top of the site.