Google and Microsoft are now both offering free versions of dial in 411 services, providing directions to and phone numbers of tons of destinations across the United States. Google's service is called "GOOG 411" and can be reached by dialing 1-800-GOOG-411. Microsoft's service is called LiveSearch411 and can be reached by dialing (1-800-Call-411). Ars decided to give both services a run to find out which one offered the most features and to determine which one was best able to find locations in obscure, low-population areas in addition to larger, populated areas.