We've been working on adding the LibraryThing for Libraries enhancements to the open-source catalog Evergreen. We've worked out the kinks, and it's ready to roll.
We've integrated both the Catalog Enhancements (tags, tag browser, recommendations, other editions and translations) and the Reviews Enhancement (300,000 LibraryThing reviews, patron reviewing, Facebook app, blog widgets).
If you'd like to see how LTFL looks, check out the catalog of Kent County, Maryland. We owe them a thousand thanks for working with us on making this work.