Geocoding for free

There are lots of options for geocoding addresses out there including MapQuest, Google Geocoding API, Yahoo PlaceFinder and some open source options such as Nominatim and Gisgraphy. Gisgraphy has a cool tool that lets you compare the accuracy of the various geocoders.

If you are geocoding for Canada, one pay service that seems to be extremely accurate is This wasn't an option for me because even at the reasonable price of $1.00 for 400 geocodes, the costs can add up.