Goog-411 can be accessed by dialing 1-800-GOOG-411. The product is completely automated and there is no way to talk to a human for additional or clarifying information. You tell it your city and state, and then ask for a specific business or business category. In my tests the product was excellent. Although the voice recognition was only working at about 70% efficiency, I just said “back” and retried when it didn’t understand what I said. Results are spoken back or text messaged back to you, and you are automatically put through to the phone number requested.

GOOG-411 is using Google’s normal local business information available on Google Maps and elsewhere. Businesses that want to add or correct data can do so here.”

Excerpt from Tech Crunch