Geotagging with where On Earth ID (WOEID) API

Yahoo! has taken the next step in geotagging by providing developers with the ability to easily geo tag their content. Specifically Yahoo! has opened up their geotagging API using which developers can now get real-time WOEID (Where on Earth ID) information.

Flickr is now providing the following WOE API services:
* flickr.places.find
* flickr.places.findByLatLon
* flickr.places.resolvePlaceId
* flickr.places.resolvePlaceURL


Dan Catt of Flickr (Yahoo!) has more regarding WOEIDs on geobloggers.com. In his blog post he points out Flickr photos search by WOEID which allows you to enter WOEID and get all photos that are of that area. He also highlights the differences between Flickr API and Yahoo! geo API:

“Over at Flickr, we only use specific ‘levels’ of geo information, such as city, region, state, country, while the APIs over at Yahoo will spit out far more levels in-between the ones Flickr uses, as well as deeper down to neighborhood levels, which Flickr doesn’t do (yet).”

One thing to note is that WOEID isn't assigned at address level, only at town or neighborhood level.