This has been confirmed on the Library of Congress blog: http://www.loc.gov/tweet/how-tweet-it-is.html http://www.loc.gov/tweet/how-tweet-it-is.html It is not

This has been confirmed on the Library of Congress blog: http://www.loc.gov/tweet/how-tweet-it-is.html http://www.loc.gov/tweet/how-tweet-it-is.html It is not a fake or a late April Fool joke, despite the fact that the original post is from facebook.