Many people know that if you want directory assistance (a phone number, for example), you can dial 411 from any phone.
The problem is, with many providers, it costs money, especially when you use a cell phone to do it. Ironically enough, that's usually when you need to use 411.
A few years ago, a company came out with a free version of that, but the problems included the fact that you could not be directly connected to someone, and also the fact that you had to listen to advertisements.
This is definitely not new news, but it may be new to some of you - Google has a free service called GOOG-411 that you can use. Dial 1-800-GOOG411 (1-800-466-4411) from any phone and you'll be able to get directory assistance for free, get connected automatically, and no ads. Also, they can send you a text message with this information if you have a special need for it.
I've got this programmed in my phone for the times I need it. Just another cool service from the folks at Google.