Adding geographical identification (or geotagging) to a website during the development cycle hasn’t been standard practice in my books. Although I must say its rather interesting and the syntax is pretty straightforward.
For example, in the case of Pick Yours Up, to add the geographical tags, you would include the following information
You can obtain the country and subdivision codes from http://geotags.com/iso3166/countries.html. For the geocodes, you can visit http://geocoder.ca