I posted this Twitter StreamGraphs visualization that displays a flowing graph of the words most frequently used in the latest 1000 tweets marked with the hashtag #SOTU. (#SOTU is a Twitter code for Tweets about the State of the Union address.) It was a great way to follow the backchannel Twitter chatter during (and just after) Obama's speech.

Because the level of Tweets using the hastag #SOTU has dropped way off - here's screen shot of what it looked like when it was live. Click to enlarge.

But since there are still a few people tweeting with #SOTU, click here for full screen of the live graph.

Navigation tips: Click on a word to highlight and see included tweets below.
Scroll to right for the latest keywords. Scroll down to see the full Tweet.
If you see a large spike in one time period that hides the detail in all the other periods, click in the area to the left of the y-axis to change the vertical scale.

Hat tip to Twitter StreamGraphs - @JeffClark