Record everything that you are interested in and wanna value. Then get connected to the people of your kind based on your evaluations, and get personalized recommendations for everything from them.
Be free from abusing or contamination, and agenda setting from mass-media which is inevitably to be filtered by a few editors. Even if they are good at all, some of them might be not of your interest and not be ordered by your importance. Make your important sorts be important. And meet the minority reports of your kinds.
Things that worth spreading, but so specialized especially to a few experts, will be propagated through your neighbors of that particular fields/categories in Recoeve. (You do not have to send messages to them. Just reco it, then the recos will spread out, finding automatically which users might be interested in this.)