If you live in Madrid this Google maps application will help you to check the status of the rings roads surrouding Madrid (Road M-40 and M-45 )before you take the car in the morning. Direct link to app Found via bbs keyhole
I decided to give a try to Google Maps API and I found it pretty easy. Currently I’m looking for a jiu-jitsu school near Madrid so I decided to pinpoint all jiu-jitsu schools in a google map. I’ve got the school addresses in this page and put those directly in the page using the geocoder api. Here’s the result, you can see all the code using View Source in the browser menu it’s all embedded javascript.