At OSU, we’ve played with this on and off and finally decided to just take this live. For those that use CONTENTdm, I’ve created a small document that discusses how this works and what it looks like. As I said, simple implementation at this point, but if use takes off, I’ll look to add things like tag clouds, integrated search results, etc. This won’t be interesting to anyone but folks using CONTENTdm. Sorry.
Here’s a link to the document: CONTENTdm_Tagging.doc