Chapters/Indigo, the largest Canadian bookseller, just rolled out thousands of brand new in-store kiosks. (See the mostly positive review at Index//mb). Among other things the new search is enhanced by LibraryThing tags. The tags aren’t shown on the page, but they’re helping drive better search results.
We wish we could link to the system, but kiosks are in-store only. So, if you’re in Canada, check it out. (And try big ones like “chick lit” or “steampunk” for us, will you?)