Yahoo releases open geodata

Gary Gale, Announcing GeoPlanet Data, The Yahoo! Geo Technologies Blog, May 20, 2009.

... Today at Where 2.0 2009 in San Jose, we've announced the public release of GeoPlanet Data, a downloadable resource of the geo data that underpins both [Yahoo!] GeoPlanet and Placemaker™.

GeoPlanet Data is a freely available, tab delineated download which is released under the Creative Commons Attribution license. Both GeoPlanet and Placemaker use GeoPlanet Data's:

• millions of place names in multiple languages
• WOEIDs [Where on Earth IDs] - Geo Technologies' unique and permanent identifiers
• vertical and neighbouring relationships for each place ...