OpenStreetMap
Spent the last week adding postboxes and their references / collection times for the WV3/WV4 area into OSM. These are being picked up by http://dracos.co.uk/made/locating-postboxes/
Unfortunately, the times the dracos site has listed are out of date, so I’m manually checking each post box. That also guarantees the reference code is correct!
Diskussioun
Bemierkung vum Vclaw de(n) 6. September 2012 um 11:00 Auer
The postbox details on that Dracos website are from a Royal Mail list, which is possibly copyright. Plus both the refs and collection times can be inaccurate/out of date. So probably best not to copy anything from there, instead survey what it actually says on the box.
Also, if you’ve not seen it already, this website is useful: http://robert.mathmos.net/osm/postboxes/ It highlights possible problems with mapping and tagging of postboxes in OSM, so you can check them and fix them.