Libraries
Lib-Web (Libraries in 146 countries)
Library of Congress Websites
LOC Search (use Advanced Search under Search Options, also scroll down and see links below search bar)
Class Web (only used on site)
E-Resources (do the Databases "All Resources" search)
Smithsonian Research (search of publications they have created)
Smithsonian Collections Search (searches all collections of the Smithsonian)
Dig DC--DCPL's digitized collections
Digital Public Library of America