Twitter and the News

Which news firm has the best reach via Twitter? According to research conducted by the University of Arizona researchers Sudha Ram and Devi Bhattachary, using metrics like articles’ half-life to determine the popularity and longevity of a news story, articles from BBC, Mashable and the NYT had the longest life span.  BBC, Mashable and Wired were most likely to publish “popular” articles — stories on Twitter that exceeded the average article half-life of 5.5 hours (“half-life” is based on a bitly definition that says it’s the amount of time at which a link receives half of the clicks it will ever receive after it’s reached its peak). – GigaOM