[TheOtherHobbes]

I've found FB mostly irrelevant for socialising, but very useful for interest groups - what used to be Usenet, then eGroups/Onelist, then YahooGroups, then Google (sort of.)

There are only so many possible applications in the social space, and the idea that friends/family, work colleagues, hobby/interest, and professional interest groups should all share the same space was always eccentric.