A térinformatika, mint olyan

Provider	Description	Commercial Use	Limits	Terms	Fees
A rcWeb Services - Commercial Services	Maps, geocoding, routing, spatial queries, and more!	Yes		Yes	Pricing
ArcWeb Services - Public Services	Maps, geocoding, routing, spatial queries, and more!	No	Free for personal, noncommercial, and nongovernmental development projects.	Yes	Free
Geocoder	Get latitude/longitude of any US address	20k lookups for $50	Free svc is throttled	Yes
Geocoder.ca	Get latitude/longitude of Canadian addresses	No		Yes
Geonames.org	International geocoding web service for place names and postal codes	Yes			Free
Google	Maps from Google!			Yes
HostIP	Gives you geography info based on IP Address
ip2location	Geolocate IP address to Country, city, region
localsearchmaps.com geocoder	Geocodes world addresses/geographies using a javascript API that is compatible with MSN Virtual Earth, Google Maps, or your own Javascript method/API. Now also provides an open xml or json output format. Can take input in 1 field or broken up by multiple fields (i.e. street, city, state, etc). Also takes in phone or IP Address as input and attempts to geocode. Supports Geocoding of most of the world.	Yes	free and open but abusing the service could mean throttling or shut down. No registration required, either.		reciprocal link requested but not required.
MapQuest OpenAPI	The MapQuest OpenAPI is a free service that allows you to use JavaScript to easily integrate routing, geocoding and mapping into your website. With this feature-rich API you can create dynamic routing and mapping applications for personal or community use.	No	50,000 combined maps and geocodes and 5,000 routes per day	Yes	Free
Microsoft Map Point	Maps from Microsoft!	No	1000 transactions/day	Yes
Microsoft Virtual Earth	More Maps from Microsoft! What is the difference between Virtual Earth and Mappoint?
NASA	Satellite pictures of the whole World	Yes		Yes
Nearby.org.uk Geocoder	Postcode and Zip Geocoder (& Reverse), includes coordinate conversion.		throttled depending on useage and server load	Yes
Ontok Geocoder	Get latitude/longitude of any US address	Yes	Unthrottled, limit 10; Monthly subscription		Free and $9.95/month (1M/month)
OpenStreetMaps	Free geographic street map information			Yes
StrikeIron Canada Geocode Service	Lat/long from Canadian address	Yes	25 uses free		Pricing
StrikeIron US Geocode Service	Lat/long, FIPS, census info from US address	Yes	25 uses free		Pricing
Telcontar	A hidden Gem! Full Featured LBS Web Service * OpenLS compliant * Free-form geocoding in 5 languages and 9 nations * Reverse Geocoding * Driving Directions w/ turn-by-turn images (in 1 req) * POI lookup * Navteq or Tele Atlas coverage for N.A and Eur				Free for dev/non-comercial Subscription for comercial
Yahoo Maps	Maps from Yahoo!	No		Yes
Yahoo Traffic	Traffic Information from Yahoo!
ZeeMaps	International geocoding web service
ZipCoder	Lat/long and more from zip codes				Free