I've clearly lost my mind.

I started cataloging my books on LibraryThing. 

I revel in my geekdom.  (When I'm not horribly ashamed, that is...)

The really sad part of all this is that I don't have the Internet at home...  So last night while watching Bad News (and More Bad News), I wrote ISBNs down on scrap paper to bring in this morning.  Wow.