If you have a Google Talk account you can now point on Google Maps where you are. The Google Talk Map shows if you are available/busy and shows a customizable message which can contain a link to your blog, or your hometown site, webcam etc.

The only thing you have to do is :

• Add map.bot@gmail.com to your friends.
• Ask him anything and he will respond with a link the gives you access to a page where you can set your position (remember to zoom in and try hybrid mode).
• Done.

In the response of the bot you can also find a link to an image that shows your current state. Especially cool for blogs.