I noticed that too. Particularly articles based on reddit and HN posts/comments. Maybe it's because those two are the primary social media platforms I use or maybe those are popular with media workers. The one that comes to mind recently was the last blockbluster article from The NYTimes ( I think ). It featured prominently on reddit and then a few months later, there was an article about it. Also, I noticed a lot of content from reddit in movie and tv show dialogues. I'd be watching something and a dialogue would remind me of a reddit post or comment and then I'd think, I bet the writers of the show uses reddit.