From Dkos:
Wikipedia Scanner — the brainchild of CalTech computation and neural-systems graduate student Virgil Griffith — offers users a searchable database that ties millions of anonymous Wikipedia edits to organizations where those edits apparently originated, by cross-referencing the edits with data on who owns the associated block of internet IP addresses.
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Voting-machine company Diebold provides a good example… with someone at the company’s IP address apparently deleting long paragraphs detailing the security industry’s concerns over the integrity of their voting machines, and information about the company’s CEO’s fund-raising for President George Bush.
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Employees at the CIA’s net address, for example, have been busy — but with little that would indicate their place of apparent employment, or a particular bias. One entry on “Black September in Jordan” contains wholesale additions, with specific details that read like a popular history book or an eyewitness’ memoir.