Sites that serve as a comprehensive and reliable filter of information on a topic will be read, but they’ll always have to compete with other fast-paced news publishers. To aggregate information is incredibly easy. To process, analyze and situate it within a big picture context while offering an intriguing/unique perspective is considerably more difficult.
Those who can do so will be trusted: they are a valuable knowledge asset for any reader.
Detailed, unique content immediately stands out on its own, even without extensive marketing efforts. People don’t just want to be informed, they want to better grasp a topic in all its nuances. The joy of consumption lies not only in the skimming of a news story but the processing of new perspectives to enrich a personal worldview or professional need.