TweetBrain allows you to ask a question and have people answer. Everything is categorized for easy sorting. Questions can have rewards and expirations (default is one day) assigned. I first questioned why you cannot just use standard Twitter for this same effort. Well, humorously I found the answer in the FAQ:
If your tweet on Twitter has a hashtag #help, #needhelp, #question or if it contains “anybody knows”, TweetBrain will post your tweets.
So really you could use TweetBrain to help speed up searching for those that need help, or let it pick up the question for you and see if an answer can be found from someone that just loves doing that all day. While there were many silly questions I saw, there were also some opinions needed as well as tech help. On the right you will find hotlists of questions and topics.
Any topic showing open means that no answer was accepted and you can still help that person. So get over and offer some crowd sourcing help. They do not use OAuth yet, but say that since it is still in beta, they are watching and waiting to implement it.