Check out this article by David Carr from the New York Times, one of the old media organs that has managed to create a really meaningful new media presence:

Historically, young women and men who sought to thrive in publishing made their way to Manhattan. Once there, they were told, they would work in marginal jobs for indifferent bosses doing mundane tasks and then one day, if they did all of that without whimper or complaint, they would magically be granted access to a gilded community, the large heaving engine of books, magazines and newspapers.

Beyond that, all it took to find a place to stand on a very crowded island, as E. B. White suggested, was a willingness to be lucky. Once inside that velvet rope, they would find the escalator that would take them through the various tiers of the business and eventually, they would be the ones deciding who would be allowed to come in.