Google: The answer to any question you can think of, in front of your computer.
ChaCha:  The answer to any question you can think of, anywhere.

If you’re ever on the run, and looking for the answer to the question that just keeps bugging you, be sure to check out ChaCha. All you have to do is text a question, or call in and ask your question, and a few moments later, you will receive your answer in your text message inbox, FREE of charge, answered by an expert.
 

This service is completely free, and is run not by a computer, but by humans, called guides. ChaCha originally was created by Scott A. Jones, with the intention of providing guided desktop search, which was searching the web, with the help and with suggestions from a guide, with an integrated live chat.

In April 2008, the desktop service was terminated as a more competitive mobile market was on the rise, so ChaCha became a specifically mobile search engine/answer service.
Ask any question in conversational English from any cell phone. All you have to do is call 1-800-2ChaCha or text 242242 and get the answer as a text message in a few minutes. Give it a try!