A Guide to United States Government and Politics: Web Archives

A " watchdog tracking and assessing modifications to federal environmental information resources and their accessibility."

"DataLumos is a ICPSR archive for valuable government data resources. ICPSR has a long commitment to safekeeping and disseminating US government and other social science data. DataLumos accepts deposits of public data resources from the community and recommendations of public data resources that ICPSR itself might add to DataLumos."

Google spreadsheet on progress of data rescue efforts.

Includes datasets concerned with health and the environment.

The End of Term Web Archive captures and saves U.S. Government websites at the end of presidential administrations. Beginning in 2008. Coverage is lagging several years or more.
The End of Term Web Archive contains federal government websites (.gov, .mil, etc) in the Legislative, Executive, or Judicial branches of the government. Websites that were at risk of changing (i.e., whitehouse.gov) or disappearing altogether during government transitions were captured. Local or state government websites, or any other site not part of the federal government domain were out of scope.

As of March 29th, 2017, this page is no longer being updated.

"The Memory Hole 2 - run by writer and anthologist Russ Kick - saves important documents from oblivion. Its predecessor, The Memory Hole (2002-2009), posted hundreds of documents, many of which will be reposted on the new site."