When tagging doesn't work - a comparison of two sites

Tagging does not work for all websites ...

"As an information architect, I love the idea of tagging (or folksonomies) as much as everyone else. I have had tremendous success using del.icio.us to find information that is difficult to surface with search and love clicking through flickr tags looking at interesting photographs.

But sometimes the concept just doesn't work, even in domains where we'd think it should.

I'd like to compare two of my favourite podcast sites - Odeo and IT Conversations."   continued ...   (Via DonnaM)

Odeo Website