#7 - Library Thing
http://www.librarything.com/catalog/shirleylibrary1

I like creating your own library and having it all together. I don't like the tag cloud on a library catalog. People choose really stupid stuff, and it dilutes the integrity of the catalog. I like the tag concept for it's purpose in Library Thing, just not bringing unauthorized information that may be incorrect into a Public Library's catalog. We need to retain some formal authority somewhere, or everything becomes invalid because it may be from a questionable source. There's no way to tell what's valid and what isn't.