New York Times
About a month ago, Gina Kolata wrote a piece on the increased interest in email mining, following the public disclosure of the Enron dataset. It's an interesting discussion of how social network analysis is being used by practitioner researchers.
Then last week, the CBC published a piece on Echelon, which intercepts private e-mails, faxes and phone calls, and searches them for "unusual language patterns" (e.g., coded speech) that might be associated with deceptive and otherwise sketchy behavior. It's a disturbing discussion of how social network analysis is being used by intelligence analysts.
Short story: Enron = proof of concept