Quora Meets Twitter?
I think it would be a simple matter to mark Twitter questions, that is, questions being directed to anyone and everyone, with the hashtag #?so people who are interested in searching for what people are asking on Twitter would be able to do so and easily respond.
We could just look for tweets ending in a question mark, but some would be rhetorical, and others might not be intended for exposure to the “hive.” Using the hashtag #? would be an invitation to the public at large to join the conversation.
It seems like an easy enough task to make a web page that would cull these hashtagged questions from Twitter and compile them in one place in real time. If that proves popular, maybe you could put one ad on it, to cover the cost of hosting or API calls.
Potential Clients: Twitter