The Library of Congress said today it will digitally archive every public tweet since Twitter’s launch in March 2006.

On the Library of Congress blog Matt Raymond writes, "That’s a LOT of tweets, by the way: Twitter processes more than 50 million tweets every day with the total numbering in the billions."

The Library of Congress announced the news in this tweet: Library acquires ENTIRE Twitter archive. All tweets.

History buffs may want to rethink their plans for the three-day weekend, and even people with only a slight interest in the subject should get ready to make a few mouse clicks.  The Library of Congress and Flickr have teamed up to introduce folks to a huge collection of photos, with most of the images dating back to between 1935 and 1943.

The Library of Congress sounds like an old, creaky thing, and sure enough, it was established in 1800.  But today, the Library continued a Web 2.0 push by making about 75 video clips available for viewing on YouTube.

Although this fact isn’t likely to earn Yahoo a government bailout, it seems that Flickr can count the Library of Congress among its fans.  An experiment the Library was conducting has turned out far better than anyone expected.

Every so often, we get to write about Google teaming up with some important entity (such as Columbia University or the U.N.).  Yet now it’s (sort of) Yahoo’s turn, as Flickr has partnered with the Library of Congress.