Recently geohash.org was released; the premise: short easy links that encode a location. The website offers instant conversion, but as the algorithm is Public Domain, Lordelph was quick to implement a php class, and I could quickly add the conversion to my existing conversion API. Convert a postcode to geohash anyone?
Updating the documentation noticed the API was last updated in 2005 – gulp, how time flies! Anyway as a celebration have upped the throttling on the API, now three times the previous limit. Running on much improved hardware than when it was launched so maybe the limit can be tweaked even more, will run some analysis of its impact – it already seems the API is a minor part of the overall load on the server – particularly against the Google Earth layers.