I seem to get an error for most URLs I try with the proxy.

For www.nsf.gov/discoveries/ I get:
Content Permissions Validator Exception ! Domain: www.nsf.gov Disallows: /

For www.apple.com I get:
Unexpected error.Exception while fetching page from : http://www.apple.com/

For Computerworld I get:
Unexpected error.Internal Exception when trying to use Calais WS (RemoteException))

For Digg.com I get:
Unexpected error.Exception while fetching page from : http://digg.com/technology

Etc...

I did get some data with slashdot.org, google.com, and technorati.com

Besides the errors, I'm wondering ... what would a publisher do with this information? Does the proxy output RDF?