Sullr is a new reverse telephone directory that — like other reverse look-up tools — allows you to enter a phone number and find the name and address of its owner. But this one adds an extra ingredient: a Google map showing the location of the phone number. So far, it covers five countries (Argentina, Belgium, France, Italy and the United States), but promises to add more. It also works with a mobile device by going to wap.sullr.com.