I wanted to play with Google Maps a bit - so I put together a quick hack to plot placenames (from the dataset @ http://geonames.org) on the map which match given regular expressions to see if there's any interesting patterns:
Code is here: http://github.com/smcl/placename
Link is here: http://places.mclemon.io
Some examples:
"Berg"-like suffixes
Slavic "vice" suffixes
Rivers in placenames
German suffixes clustered around a few places