chacha.com?

[Kneo]

sorry, it is pretty much a search engine. However it is manned by live people. Someone can text or even call in a question. The question is then submitted to a "guide" who looks up the information and answers the question.
http://www.chacha.com/

As a guide you are able to make some money, though it is very little, but pretty much anyone can sign up to be a guide.