I found the paper about vocabularies interesting. I was in China last week at a workshop that was discussing Linked Data, among other things, related to a FAO initiative I have been involved in. While I was there I heard about a recently funded project (to the tune of $12 million US) involving a few institution in China that is going to create what they're calling a super thesauri (called STKOS) that will be a comprehensive vocabulary for medical, engineering, science, and agriculture (all in English). They're talking about mapping some very large thesauri such as UMLS and Agrovoc to this new thesaurus.
From: Code for Libraries [mailto:[log in to unmask]] On Behalf Of Eric Lease Morgan
Sent: Wednesday, June 29, 2011 11:08 AM
To: [log in to unmask]
Subject: [CODE4LIB] library linked data
* LLD Vocabularies and Datasets - Enumerated various
library-related metadata element sets, value vocabularies, and
datasets. In combination, these thing support the creation,
maintenance, ad use of Library Linked Data (LLD). I was
pleasantly surprised at the number of items in each enumeration.
The next step is to put them into practice to a greater degree.
 vocabularies - http://bit.ly/ksioyK
Eric Lease Morgan