Online articles often change after publication, except there is no history tab and sometimes those revisions are controversial, for example this Politico story on General Stanley McChrystal. Enter NewsDiff: Tracking Online News Articles Over Time. It allows you to compare evolving versions of online news articles after they are published, starting with The New York Times and CNN. Here are some example diffs – see anything controversial? Last year, Times executive editor Jill Abramson called the idea “unrealistic” in response to an OpEd calling for diffs. (via)
via MetaFilter http://www.metafilter.com/117080/Diffs-of-CNN-and-NYT-articles