ChaCha lets you, literally, ask a question
To use the new service you can call 800-224-2242 (which spells "chacha") and specify the information you want to an automated attendant. ChaCha then sends you a text message with the answer. You can access your questions and answers on the Web as well.
I tried it out and found it accurate and fast. Within a few minutes of me asking where I could get a veggie burger and a margarita in downtown San Francisco it came back with an answer: Perry's Downtown, 185 Sutter Street "They have a full bar, it's casual and good ratings." Bravo!