It turns out that you do have the potential to influence your Facebook friend's perception of news:
Bottom Line: You've probably heard of the term "influencer". These are defined as people that have significant followings on social media and thus have influence over them (theoretically). Well, "influencers" aren't the only one's who have influence. You do within your circle of friends.
New research from The Media Insight Project conducted a study with nearly 1,500 adults on Facebook. News was presented to them in different ways on Facebook (but the stories were always exactly the same). What they found is that only 34% of news stories that were presented to them by an unknown source were deemed to be credible. However the exact same story (packaged under a different looking template) shared to them by a friend they trusted was deemed credible 51% of the time.
That's a 17% increase in content credibility when a trusted person is sharing the information. So that might be useful to you when attempting to share content online. You likely do have influence.