I am about to start defining a new API which will allow our clients to perform Geo Coding lookups. I would like to follow any standards there are out there. However looking at a few examples:
They seem to be setup using their own standards... I was wondering if there is a recognised standard out there.. and if you could direct me to a site that uses the standard that would be great. Off the top of my head I can think of
However I'm not sure if these are recognised as the official standard.