I haven't blogged for a while, but I have been writing. I recently wrote an article for PHP Master (part of the Sitepoint family) on geolocation, called Targetted Geolocation with Geonames.
The article looks at how you can use a RESTlike web service called Geonames to take a user's location and resolve it to a place name. In the article, I use the example of providing a prompt urging the user to go check out the cinema listings in their local town, whatever that happens to be.
I'm currently writing another geo-based article for the same publication, as well as some other articles for here and elsewhere - stay tuned!