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With Congress unable to work out a deal to keep America's doors open, many government Web sites are either unavailable or sitting idle, awaiting funding.
For example, the Library of Congress archives, a treasure trove of information, photos, and historical documents recounting US history, are unavailable Tuesday.
Click on for a sampling of more government sites (and Twitter feeds) gone dark or in a suspended state.
Correction at 5:05 a.m. October 2: The final slide has been removed. The USAjobs.gov site is up and has not been affected by the federal shutdown.
Visitors to the US Department of Education Web site will see a disclaimer noting the site is at a standstill and will not be updated until further notice.
The Federal Communications Commission Twitter account, @FCC, tweeted this message at 4:30 a.m. ET and has been silent since.
Go to the National Park Service Web site, NPS.gov, and you're greeted with this message stating that all national parks are closed.
The Smithsonian Web site is still active, but a message posted at the top of the site advised that all Smithsonian museums are closed until further notice.
If the government shutdown is making you sick, don't go to the CDC site for help. It, too, is shut down.
The USA.gov Web site, with the slogan "Government Made Easy," also bears a warning message that the site is operating in a suspended state.
The Office of Personnel Management redirects to its "Snow and Dismissal Procedures" page.
The Mars Curiosity Rover tweeted this message early Tuesday morning. Even millions of miles away, the government shutdown is having an impact.
NASA TV was all set to broadcast its Asteroid-Capture Mission Workshop on Tuesday. Both the workshop and the television feed have been cancelled.
This pop-up disclaimer greets visitors to Whitehouse.gov.
Yes, the NSA is probably still collecting your information in the background, even though the NSA.gov site is not being updated.