If you’ve used Google Maps recently, you might have noticed that sometimes it is able to figure out (reasonably well) where your computer is. That’s because there is now magic that can do geolocation through your browser.
The upcoming HTML5 specification is suppose to support geolocation, so your future browsing will be even less anonymous. From a geeky point of view, it is interesting to play with this new information. I’ve been fooling around with it, and it is quite easy to grab the lat/long of your current location and then slap it on a map. What to do with it after that is a good question though.