Twitter may have been born out of San Franciscos fast-moving startup culture, but its latest leader comes from a place far from it. Vivian Schiller, who will start as Twitters first news partnerships leader in January, comes straight out of the old media world, where shes worked at a number of top organizations from NPR to The New York Times. Most recently, Schiller has been working at NBC News, and in a blog post today she explains why shes choosing to make the jump from digital person in a media company to the media person in a tech company. In part, her interest in Twitter seems to be much the same as her interest in NBC: she wants to use new technology to help media companies reach a broader audience.