Shelf Check #387

[related: Dave drafting tweets in SC #289]
How Tweet It Is!: Library Acquires Entire Twitter Archive (LOC blog)
The Tweet Hereafter (CNet Pulse)
Ain't That Tweet? Library of Congress to Archive Twitter Messages (GreatHistory)
[I'll continue to add links to articles on this story with headlines containing bad puns on "tweet" as I come across them. Tweet dreams are made of this.]