Librarything

I still cannot quite see the merit of individualized tags, unless people are very conscious about how they use them and then it seems we are back to the organized way librarians handle keywords etc., except that everybody uses their own organization.

I looked up the Freakonomics entry in the library catalog and the tag cloud for this book. One of the tags was business. When I clicked it I got what I expected a list of 600 books tagged 'business'.

That was somehow self-defeating, so in order to get something that is more focused you still have to go back to the library way of cataloging books.

Someone explain to me why this is useful....