Google Map of Accents for Actors: Great Idea or Dumb Idea?

Here’s the idea: make a Google Map wherein each placemark on the map contains a link to an audio or video source of that place’s authentic accent/dialect — for example, documentaries which can be rented or found at libraries, or radio segments that are archived online (like at the NPR website, and the sites of some specific public radio shows). The important thing is that the media sources contain the speech of ordinary people (i.e., non-actors). See also the screenshot at right for an example of what a placemark on the map would look like.

Great idea or dumb idea? Vote in the comments. And comment in the comments, if you are moved to do so.