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Who needs journalists, really? That's what Business Wire argues. Warren Buffett, the billionaire CEO of Berkshire Hathaway, picked up Business Wire in 2006. He claims not to be tech-savvy, but this investment suggests otherwise. Press releases distributed by Business Wire are picked up directly by services like Google News and Techmeme. As a source, Business Wire ranks 32nd on Techmeme's list — not a bad performance. Buffett also owns a large stake in the Washington Post Co. But if that goes bust thanks to the advent of online media, it seems like Buffett picked himself a nice hedge.