I was thinking. Maybe one of the things I couldn't imagine is a kind of reference wiki. Maybe my job will be to initiate and manage wiki-like things for our patrons to use. Maybe another of the things I couldn't imagine was using threaded discussion lists for reference interactions. No reason why either of those things couldn't be possible. How about blog-like things or other kinds of social software? I think I was also sort of assuming IM would get sucked up into another service platform and would really be a unique service anymore, but I'm not sure that is what's going to happen. Maybe there are possibilities there too. It's always interesting to think about what you can't imagine.