Twitter is my first source for breaking news. If anything big (that I care about) happens, it will show up first in my Twitter feed. I guess a cable news channel might come close or a good all-news radio station (do those still exist?) but my Twitter stream is non-stop in my pocket. Smart news organization (NPR and Reuters, for example) know they need to have their stories where I am, rather than try to get me to come to where they are.