Terms: Digital Content (4280000), digital project (152000), digital projects (266000), print project (205000), print projects (307000),
Terms: digital applications (294000), digital holdings (3060), digital material (200000), digital information (2590000), digital documents (436000), digital books (333000), digital magazines (96000),
Terms: National Digital Information Infrastructure and Preservation Program (6060), National Digital Information Infrastructure (12300), National Digital Library (405000), Global Reference Network (647), Digital Futures Group (127), Global Gateway (508000), Digital Interlibrary Loan (143), National Digital Newspaper Program (899),
Terms: Global Legal Information Network (75700), Copyright Records Project (82), FedLink (18500), Federal Library Information Network (139), Bibliographic Enrichment Advisory Team (439), Virtual International Authority File (488), International Authority File (533), Metadata Object Description Schema (1200),
Boolean: site:loc.gov AND digital (53200),
Terms: digital library (11800000), digital libraries (2800000), digital collection (1360000), digital collections (1540000), digital object (528000), digital preservation (471000), distributed repositories (14600),
Terms: archiving the web (1190), web archive (2690000), web archives (3940000), internet archive (2690000), internet archives (153000),
Library of Congress National Digital Library Program
Terms: digital archive (6360000), digital archives (813000), archive (962000000), archives (726000000),
Pew Internet & American Life Project