This is a perennial project for the INFO 520 class. And I always wonder how far to go in responding to the questions I get about it. Aren't all these librarians-in-training just overflowing with ambition and creative ideas for research projects like this? Well... I guess for those full of verve, they don't need my help and this posting won't hurt them. And for the ones that can use the encouragement, at least they'll have to wade through my sermonizing to get to the useful advice, and hopefully be better for it.