I stumbled across the social card catalog at the Ann Arbor District Library this weekend. Then, thanks to Superpatron, I found John Blyberg.

Ambient Findability Card Catalog Image

It's good to see librarians are learning from retail and embracing Jenny's vision of libraries as social machines. Does this mean we can write in books?

Ah, but what's this QA stuff...the AADL is a Dewey library.