Changing Role of Metadata?

I've been reading through the wiki pages for Brian Lamb's presentation on wikis etc. at David Wiley's recent ITI conference. Excellent excellent reading. Brian has done an awesome job as usual in gathering supporting resources. Man, if I could just borrow his brain for a while, I'd have my Master's thesis done ;-) (but that's another story).

Anyway, Brian linked to a post by Jon Udell: Collaborative Knowledge Gardening - basically on how the role of metadata is effectively shifting, and less formally described strategies are showing the promise of being more effective. He compares tools like, which uses "bags of keywords" to the more conventional strategies of complex taxonomies.

I've become a huge fan of Flickr, and have to admit that using it has really opened my eyes to the power and flexibility of the "bags of keywords" approach. Just look at the "Favorite Tags" page on Flickr - these are keywords that people have voluntarily added to their photo uploads, and they've been found by other users. That sounds like a controlled vocabulary, without the centralized control... It's also quite cool to be able to enter any tag you want and (usually) find some matching photos. You don't have to browse a predefined vocabulary, you can just use your own...

I really think that strategies that enable both centralized top-down as well as decentralized bottom-up approaches will be the most successful (easy for The People to use, easy for The Institution to adopt).

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