Announcement: Google is great for helping you find a pub, mechanic, even a theater.
Very insightful, I know. What I mean is using your regular telephone, not your computer to get business information for a consumer. That's right, instead of dialing 411 and getting charged by your money eating telephone giant, you can get the same information free from Google.
1-800-GOOG-411 will take you to a voice operated search for businesses. It will even connect your call. If you have a web-enabled smart phone, it will even map it for you.
You may or may not be asking "Why would Google do this for free when the telecoms charge?" The rumor is that Google is working on voice recognition software to integrate into other projects. In order to make it great, they need tons of data to compare different voices in similar patterns, like "I want pizza."
Here is a video from Google about the 411 service. A word of warning, it is a bit looney.