I thought this was cool . Amazon's new search engine, A9.com has new yellow pages capabilities. Nothing new and revolutionary in that, except for how they've implemented it, which they call Block View. Check this out:

The most powerful technology A9.com invented for Yellow Pages is “Block View,” which brings the Yellow Pages to life by showing a street view of millions of businesses and their surroundings. Using trucks equipped with digital cameras, global positioning system (GPS) receivers, and proprietary software and hardware, A9.com drove tens of thousands of miles capturing images and matching them with businesses and the way they look from the street.

The whole process (except for the driving!) is completely automatic, making it fast and efficient. Block View allows users to see storefronts and virtually walk up and down the streets of currently more than 10 U.S. cities using over 20 million photographs. We are driving and at some point hope to cover the whole country.