Answer boards and social searching

What is the answer
It seems that these two activities within web sites can be very different. One being very social and relying on other peoples experiences and opinions (social searching eg. Taste website) and the other being a place for more informed type of reference queries (Answer boards eg, Yahoo!7Answers). One is just an extension of a web page, your blog being an example. The other is a site built for the soul purpose of being a reference centre. Of course both of these tools have the same function, in that they answer peoples questions.
Promoting reference services by librarians
I liked the idea of slamming the boards once a month by librarians. Whether this is a good way of promoting reference services by librarians would be very hard to gauge. On the other hand I think it would be a fantasic promotional tool to set up a type of social searching option from our web page and blogs. Of course time could be an issue with this type of service.