Onomastics or onomatology is the study of proper names of all kinds and the origins of names. (Wikipedia, http://en.wikipedia.org/wiki/Onomastics)
MIGMAP
MIGMAP is a web application that can show migration flow between Dutch municipalities. The user first chooses generation (forward or backward in time) and gender, while subsequently the migration map of The Netherlands related to an interactively pointed municipality (or other aggregation unit) is shown.