Twitter's introduction of new search capabilities gives "it the upper hand as a breaking news destination over basically every other news organization on the planet, from newspapers to cable networks to websites and everything in between," writes Jon Mitchell. That's because humans will now categorize tweets for relevance, which "fills the one gap that Twitter can't cover with algorithms alone: context," adds Mitchell. "And if Twitter itself can master relevance, what's the point of other news sites? They're slower, and they have less information about what's happening and what's interesting to people. News organizations had better start thinking about how they can continue to matter in a world where Twitter is the destination, not just a pipe for sending links."