Study Measures the Chatter of the News Cycle
For the most part, the traditional news outlets lead and the blogs follow, typically by 2.5 hours, according to a new computer analysis of news articles and commentary on the Web during the last three months of the 2008 presidential campaign.
The finding was one of several in a study that Internet experts say is the first time the Web has been used to track — and try to measure — the news cycle, the process by which information becomes news, competes for attention and fades. via Study Measures the Chatter of the News Cycle – NYTimes.com.
PDF: Meme-tracking and the Dynamics of the News Cycle [Tracking new topics, ideas, and “memes” across the Web has been an issue of considerable interest. Recent work has developed methods for tracking topic shifts over long time scales, as well as abrupt spikes in the appearance of particular named entities.]