Excerpt from this article:
Now the KIND Foundation is trying to bring more diversity to Facebook feeds — so people can try to understand each other better. Its “Pop Your Bubble” tool, …matches Facebook users with at least 10 people who have a different political perspective, and who live in another part of the country or represent a different generation.
The tool is one of several that have appeared in recent months to help social media users become more exposed to other perspectives. Flip Feed, a chrome extension designed my MIT researchers, allows people to see what a Twitter feed looks like for someone with different political leanings. And Escape your Bubble, also a Chrome extension, inserts posts in your Facebook feed with a news article representing a differing political perspective. The posts are deliberately upbeat and friendly, intended to contrast with the way opposing viewpoints often are presented on-line, via argumentative comments.