-snip- 24. Power Line From practically the day they sprang into existence, blogs have been denigrated as trivial, inaccurate, and derivative. Untrained writers could never match the accuracy and depth of newspapers and network news. Power Line, a scrappy right-wing blog, turned that perception on its ear when it took down one of old media’s most venerable figures: Dan Rather. In September 2004, Rather and CBS News aired an explosive story about George W. Bush’s service in the Texas Air National Guard. The report used military documents to show that Bush had received preferential treatment and performed poorly while failing...