Historians and classicists check it, the British Library has a unique collection of rare and ancient books, available online not in your buttoned-up PDF but in a purely digital-lifelike form. One of the coolest applications of .Net 3.0, or only for that matter… but if you’re not there yet you can still view the Flash version (not as cool). Mozart’s notebook, Da Vinci’s diaries, Medieval works, the 15th century Libson Hebrew Bible… what could you possibly do with this? I dunno but turning the pages was pretty damn cool for a few minutes.
http://www.bl.uk/onlinegallery/ttp/ttpbooks.html