Yahoo! GeoPlanet helps bridge the gap between the real and virtual worlds by providing an open, permanent, and intelligent infrastructure for geo-referencing data on the Internet.
In practical terms, Yahoo! GeoPlanet is a resource for managing all geo-permanent named places on Earth. It provides the geographic developer community with the vocabulary and grammar to describe the world's geography in an unequivocal, permanent, and language-neutral manner. Developers can geo-enable their applications by using GeoPlanet to traverse the global spatial hierarchy, identify the geography relevant to their users and their businesses, and in turn, unambiguously geotag, geotarget, and geolocate data across the Web.
On the occasion of the celebration of the International Year of Planet Earth in (2008), the Department of Geography of the University of the Aegean in Lesvos, Greece, is organizing the international conference "Studying, Modeling and Sense Making of Planet Earth". The UNESCO Natural Sciences Sector has granted support to the conference.