On Plazes and Drupal
Plazes was one of the projects that I learned about while being at Barcamp Amsterdam last month. It determines where you currently are from the internet connection that your are using. Plazes creates a page for that location (called Plaze), which you can describe then. A really cool feature is that it also allows you to geotag photos in your Flickr account very easily. I wrote a Drupal module last week that makes a connection possible between your account of a Drupal site and your Plazes account. It can even show a Google Map of the plaze where you currently are in your profile.See a demonstration of it here.