Google is about to enter the phone directory market...
Free local Business search over the phone by calling 1-800-GOOG-411. Also will connect you to the number free of charge.
It's only available in the US at the moment, and is in the test stages. Telus, in comparison, charges a $1 + connection and text msg fee. This will be very useful, and will shake up the landscape fairly quick.
Very cool.
http://labs.google.com/goog411/