ChaCha

ChaCha is a human-powered search service where a use can text any question to 242242 (ChaCha) and receive a text message answer on their cell phones, usually within 5 minutes.

There is also a voice-based system@ 1-800-2Cha-Cha where one can ask a question and then hang-up. One then gets a text message confirming the question and then, within a few minutes, another text message with the answer.

Example:

Question: What is the current commute time on the Interstate 90 from O'Hare airport to downtown Chicago?

Answer: It is slow (20-30 mph) until Edens Kennedy junctions, then it is a parking lot. Take Rand to Northwest HWY, to Elson Ave.