LAST OCTOBER, STUDENTS in Sarah Candler’s seventh-grade English class in rural Tennessee were discussing the presidential election, echoing each other’s pro-Trump sentiments. One student dared the others: “Who’s a Democrat, anyway?”

A lone girl raised her hand. “I saw looks aghast from the other kids,” recalls Candler. Then Candler, too, raised her hand.

The closed-minded dialog troubled Candler. She began searching online for resources beyond her go-to mainstream news sources, such as The New York Times, to help her understand others’ politics. She found AllSides, a site founded by former Netscape director John Gable that displays headlines on the same stories from left-, center-, and right-leaning outlets.

Candler is among a small but growing number of Americans who are trying to break out of information silos. They are searching for sites like AllSides; the Flip Side, which summarizes conservative and liberal news on one policy issue each day; and Ground News, which shows how various stories are covered by left, center, and right-leaning outlets. For video, TheirTube displays simulated YouTube feeds for conservatives, liberals, conspiracy theorists, and climate deniers.

“We’re in a country where people are either polarized or apathetic,” says Jonathan Haidt, a social psychologist at NYU who founded Heterodox Academy, a nonprofit that seeks to encourage viewpoint diversity, particularly on college campuses. Adds Gable, the AllSides founder, “We have to get people outside of their information bubbles, but also their relationship bubbles.”