Graph of how #topics get played out on Twitter
From The Guardian's Meg Pickard, a graph that "compares 'people talking about #topic' and 'people talking about talking about #topic'. Outside of Twitter, this applies to pretty much any popular newsworthy topic...the news quickly moves from 'we're telling you about Topic X' to media coverage of the media coverage of Topic X. See: Twitter's own coverage in the media currently." (Pithy description from Kottke)