> I'm not sure this ends up being true; even though each search may add just
> one term, people often are building multi-word searches through trial and
> error. There aren't many one-word searches that yield useful results on
> the big Web indexes, in my experience.
It seem probable that the usefulness of single word searches varies
about inversely with general interest of the topic.
-- Benjamin Franz "Who is pondering the fact that a search on the word 'snowhare' returns almost *nothing* but pages by or related to himself."