LibraryThing

Well I was in my element here - I could spend all day listing all the really great books I have read!
- and as I live in fear of getting Alzheimer's and not being able to remember my life I think this is a great site to help me through my old age.
My only concern would be how well represented Australian titles/authors are - if it uses amazon to search for the info it will definitely have a US bias, I searched for a couple of Australians and got them but they were fairly recent publications.
This is a site I can see myself coming back to in my private life but not sure has a great use for libraries except as a readers advisory tool to recommend to readers that they start their own shelf so they can gain reading recommendations/reviews from other people.
http://www.librarything.com/catalog/Bookwormgbn