http://www.geonames.org/ http://www.geonames.org/ (download area at http://download.geonames.org/export/dump/ http://download.geonames.org/export/dump/) Used a

http://www.geonames.org/ http://www.geonames.org/ (download area at http://download.geonames.org/export/dump/ http://download.geonames.org/export/dump/) Used as the placename source for http://www.dopplr.com http://www.dopplr.com among others. HTH, Brendan.