Taxonomy and Meteadata Resources

http://hepburndata.blogspot.com/2006/12/metadata-defined.html

The following Metadata repositories exhibit these desired traits:
1. Whitemarsh's Metabase
2. CA's AllFusion Repository for Distributed Systems
3. Data Foundation's OneData Registry
4. Oracle's Enterprise Metadata Manager

 http://en.wikipedia.org/wiki/Dublin_Core

 http://www.taxonomystrategies.com/html/archive.htm