Yes, it is possible. Hubpages can be used as a real time portfolio for newspaper article writers and many other similar type jobs! If you can prove to an audience here that your stuff is good and worth writing, why wouldn't that be proof enough for the editors at the magazines and papers?
Hubpages also counts as a personal freelancers awesome site thing. You can make hundreds a month here if your good, some few even make in the thousands! Talk about freelance haven, writing anything you like in your own way, come on whats better?