YABA4 - hints

HINT 1 RELEASED AUGUST 7, 2002

HINT 2 RELEASED AUGUST 14, 2002

HINT 3 RELEASED AUGUST 18, 2002

Note: Several people have written to us off-line regarding hint 3. Without giving anything away for people who have not yet solved it, let us say that this clue does *not* require a visit to a physical location.   Although a visit to your local public library after solving the hint might  prove fruitful :)