Folksonomies and Libraries

Seems like the library community is getting interested in folksonomies and how they can be used to supplement data coming from OPACS and other structured metadata.
From The Shifted Librarian: I think controlled vocabularies and folksonomies can co-exist peacefully and even complement each other. And as librarians, let’s start making use of them to complement what we’re already doing.
Sounds like it’ll be an interesting meeting. Take the red pill.