Could stackoverflow.com work for other fields?
timcederman: I had thought so.  On closer inspection though, it's unlikely.Why? Have a look at reference sites online.  There were plenty of sites like experts-exchange before StackOverflow, and if you trawl Google Groups, you'll see a similar thing.  Plenty of people asking technical questions, not so much anything else.Certainly, you don't see medical students out there asking the best way to diagnose a rare disease.There is one exception though -- Travel sites.  Travel questions and forums are pretty big, and I think a Q&A site for that could be enormous.Meanwhile Yahoo Answers, AskMeFi, etc continue to fill the gaps for other niches that might actually work.