I am a passionate user of and advocate for LibraryThing. (See sidebar for hot link). I love cataloging my books, or rather my reading experiences, and I love to rummage around for recommendations and ideas and to follow trails through reading lists.
Some of the things that have come out of it for me is that I have a mental library of about 1100 books. This includes not only books I own, but also books I have read but given away, books I have borrowed from friends or the library and books I own but have not yet read (there are about 200 of those - woo-hoo!) (Actually I am hoarding books and wine against the day that all world currencies collapse. I figure I'll be in good shape to enjoy life, and possibly be able to trade for necessities.)
A very surprising statistic that came through is that I have only re-read about 10 books. Ever. That started me asking around a bit among my friends. Not only which books have you re-read, but why. The first answer I got was so charming - it was a fellow biblio-adept - who re-read a book as an adult that he read as a teenager enjoying his first passionate relationship with a girl.
Now I plan to write up the stories here in a nice long post. Please send me your lists. Those of you who know me can pass along suggestions in any form of communication.
The marigold is left wondering nervously if the library in question is also "mental"?