The Geonames website offers a number of useful geocoding services:
- Enter a name, and get back:
- A list of the first fifty geographic features in their database that include that name
- The feature coordinates
- A link to let you plot the location of that feature in Google Maps, along with fifty other nearby features
- Links to download those features in “csv” spreadsheet format (looks more like tab-delimited to me), or a png image that shows the selected feature plotted as a red point on country line graphic:

- A web-based geocoding service
- A postal-code lookup service
- A downloadable copy of the geocoding database, by individual country, or combined into a single 150 MB file for all countries
Related posts:
- Another Google Maps Geocoder/Reverse Geocoder
- Online Geocoding, Address Verification And Shortest Path Utilities From the USC GIS Research Laboratory
- Worldwide Reverse Geocoding With Google Maps
- Plot Gazetteer Features In A Google Maps Interface
- Online Database Apps With Geographical Applications
- Reverse Address Geocoding With Google Maps
- Batch Geocoding And Reverse Geocoding With MicroPath Geocode
- US Address Geocoding For Google Earth
- Online Map Projection Viewers II – A Great One From Brazil
- Tiny Geocoder

reuired knowledge about geo-coding in the database