
geospatial
Get flash to fully experience Pearltrees
outdoors
astronomy
history
geocache
the Degree Confluence Project
Geocaching - Wikipedia, the free encyclopedia
Geocaching is an outdoor sporting activity in which the participants use a Global Positioning System (GPS) receiver or mobile device [ 2 ] and other navigational techniques to hide and seek containers, called "geocaches" or "caches", anywhere in the world . It is a derivation of the outdoor sporting activity of Geotrekking . A typical cache is a small waterproof container containing a logbook where the geocacher enters the date they found it and signs it with their established code name. Larger containers such as plastic storage containers ( Tupperware or similar) or ammunition boxes can also contain items for trading, usually toys or trinkets of little value. Geocaching is often described as a "game of high-tech hide and seek", sharing many aspects with benchmarking , trigpointing , orienteering , treasure-hunting , letterboxing , and waymarking .Geotagging (also written as GeoTagging ) is the process of adding geographical identification metadata to various media such as a geotagged photograph or video, websites, SMS messages, QR Codes [ 1 ] or RSS feeds and is a form of geospatial metadata . These data usually consist of latitude and longitude coordinates , though they can also include altitude , bearing , distance, accuracy data, and place names. Geotagging can help users find a wide variety of location-specific information. For instance, one can find images taken near a given location by entering latitude and longitude coordinates into a suitable image search engine . Geotagging-enabled information services can also potentially be used to find location-based news, websites, or other resources. [ 2 ] Geotagging can tell users the location of the content of a given picture or other media or the point of view , and conversely on some media platforms show media relevant to a given location.
GeoTagging - Wikipedia, the free encyclopedia
by Julian Bleecker 06/07/2005 Editor's note: Julian Bleecker heads the Mobile Media Lab (MML), a near-future think tank and research and development lab at the University of Southern California. In today's article, Julian describes a design approach for location-based services utilized in many of the projects under way at MML. At O'Reilly's Where 2.0 Conference later this month, Julian will be taking part in a panel discussion on the secrets behind good social mobile applications and the obstacles they face in the real world.
O'Reilly Network -- A Design Approach for the Geospatial We
geocoder.us: a free US address geocoder
Recent News and Notes Feb 2, 2012 We are working to expand the geocoder.us product offerings. Please Email geocoderus@gmail.com if you have product/service requests.by Mike Liebhold , contributor to O'Reilly's upcoming Mapping Hacks 05/10/2005 Editor's note: In this article, Mike Liebhold writes about what we need to do to tap the as yet unharvested business opportunities in a geospatial web. This is just the type of topic we'll be exploring at the O'Reilly conference Where 2.0 , coming to San Francisco in late June. Join us to learn how vendors, application developers, and consumer web companies are using GPS, RFID, WLAN, cellular networks, and networked sensors in new ways to solve old business problems.

