Is there a way to take the news and translate it into causes? For example, if the top-viewed stories had to do with a hurricane, a school shooting, or an impending policy change, it would be interesting to try to send people to those causes. (But sadly, sometimes the news isn’t a good indication of what should matter. For example, the political turmoil and genocide in Africa was downplayed big time because it happened the same time as the Clinton impeachment.)
Alternatively, people could flag articles that are related to their causes. At the headquarters, there could be a news channel dedicated to news feeds tagged by people in its network. Highly tagged (or highly rated?) news items could then be promoted to a general news feed. That way, the people who are motivated by their causes would be the ones highlighting the news (rather than the media agencies).