The Library of Congress http://loc.gov/ Added: Feb 02, 06 Report Resources. The largest library in the world. They have a large research staff and it doesn't look like they accept submissions but it may be worth a suggestion if your site is exceptional and provides useful information.
aol.com http://yellowpages.aol.com Added: Sep 20, 10 Report Listings use nofollow links. Local Search Engine, Yellow Pages.