GOOG411 might be my favorite Google services.  For absolutely FREE you can call 1-800-GOOG411 and get any business phone number or address in the country.  It is quick, automated, easy, and has made my life much easier on the go.  This service also proves to me that Google gets “it.”  Google understands that to be profitable you  do not have to charge for every product or service you offer, but that the services that you offer have to be valuable to those that use them.  Yeah, Google probably gets some residual data benefit from your call (i.e. phone number and research information, and voice data for their recognition research), but what they are really doing is building loyalty to their brand.  If you have not used it, Try it.