Wow, it's amazing how many different things one can do on the web that I had no idea of. Twitter and Tumblr, for example. Twitter, however, doesn't look useful to me because I don't IM. I don't have a cell phone. I just can't picture myself keeping an adoring following up to date with what I am doing every hour.
Tumblr (and yes, I did start a tumblelog) looks more useful to me. It could be a good way to keep track of useful stuff on the web. I can see the handiness.
I'm not even going to try to speculate on library uses, because I'm kind of tired and can't think of any, except on a personal level, in which Tumblr could be useful in creating a hand-picked personal library of quotes, videos, sites, usw.
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