Ben Goldacre: "Why don’t journalists link to primary sources? Whether it’s a press release, an academic journal article, a formal report, or perhaps (if everyone’s feeling brave) the full transcript of an interview, the primary source contains more information for interested readers, it shows your working, and it allows people to check whether what you wrote was true. Perhaps linking to primary sources would just be too embarrassing. ... It’s also an interesting difference between different forms of media: most bloggers have no institutional credibility, and so they must build it, by linking transparently, and allowing you to easily double check their work."