My other half uses forums/answer boards for mechanical/car related info.
I think answer boards do have a place in libraries, especially public libraries. Each branch could have their own answer board so customers could post questions or comments at a time convenient to them, rather than ringing us when the library is open (not always convenient for the customer) or emailing a librarian.
The thing about these Web 2.0 technologies is that, if libraries embrace these applications and have for example blogs, answer boards, wikis etc, these are then public forums. It puts a whole new spin on customer feedback. It's abit like having a queue of customers and everyone overhearing the customer - librarian interaction at the counter. It can be a good thing, but there is a downside too.
