Type any search term into Twitter StreamGraphs and it generates an interactive visualization of the past 200 posts on that topic. Same goes for a Twitter user’s name. At right is a thumbnail screenshot of my past 200 tweets. Click the image to enlarge.
I haven’t figure out how useful this visualization tool is. But it’s kind of fun to play around with. I’m sure it could provide some benefit to Twitter analytics, assuming Twitter ever turns into something worth analyzing.