The vast majority of government publications are now published directly to the web, ensuring widespread availability. However, access to most older government documents remains somewhat limited; these items are generally only available in libraries that are part of the FDLP system. Many libraries and other organizations, such as those noted below, are working to increase availability by creating digitized copies of these older documents.
Digitization Projects Registry. Describes and links to independent digitization projects for government documents.
Google Books. Includes government documents, as well as other items. To focus a search to government publications, try adding "Government Printing Office" or "G.P.O." in the publisher field.
HathiTrust. This large-scale digital repository includes many government documents.
Internet Archive. Collection of federal government documents.
TRAIL: Technical Report Archive and Image Library. Collection of federal technical reports published pre-1975.
University of North Texas (UNT) Libraries. Access to a large number of digitized documents, arranged in several distinct collections.