Several other commenters have noted differences, but I have one that I think is significant. Tabloids, newspapers, news broadcasts are a single artifact delive

Several other commenters have noted differences, but I have one that I think is significant. Tabloids, newspapers, news broadcasts are a single artifact delivered to many people. They have the same incentive to sensationalize, this is tempered though by the fact that they leave a public record that people can discuss, scrutinize, and will ultimately impact their reputation. When a paper consistently prints outlandish stories of bat-boys and lizard-ufos, everyone can see that and the paper will get a reputation as being a rag. In contrast, the feed of posts you see on your facebook (or twitter, or instagram, or other social media feed site) is tailored to you. There's no opportunity for other people to see the crazy thing that hit the front page and write blog posts critiquing it, give talks debunking the methodology, etc. The algorithm can show your eyes, and your eyes alone, a steady stream of posts that are right on the edge of what you will find acceptable and engaging. The public at large won't know what is on your feed or even the feeds of powerful actors in society like politicians, billions, and celebrities. It's like we are all accessing our own personal newspaper everyday, whose stories have been tailored to be as interesting as possible to us, but without any accountability or scrutiny besides what we bring to the table. You are welcome to see something that confirms your world view and either accept it as gospel or do the leg work to prove or disprove it. What we are finding though is that when people are presented with things that confirm their beliefs, they tend to accept them. This isn't really earth-shattering or even surprising. The ramifications of having a population constantly consuming a stream of media tailored exactly for them is something are starting to understand.