Harvard Library Tweets Books Checked Out but One Problem

Harvard University put up a beautifully executed site where the books checked out from their five respective libraries are aggregated, Tweeted and integrated with their proprietary catalog database (Hollis)

Fascinating and educational, as I am always looking for new ways to learn. Times like these I fall in love with the Internet allllll over again.

However. Where do past Tweets go? How do I pull up archives?? Am I the only one who wants more than real-time data???

There are ways to look up and archive my data (Tweettake, BackUp-ify, even FriendFeed) but there are so many neat Twitter API based services. Such a bummer there is no efficient search or archive.