Alas, LOC was NOT a friend to the broader digital commons ten years ago. It was in its own world. Which was too bad, because LOC had GREAT resources, especially in the taxonomies and systems it used to organize things. But it actively turned off access.
http://web.archive.org/web/20090123053019/http://lcsh.info:80/comments1.html
http://web.archive.org/web/20090123053019/http://lcsh.info:80/comments1.html