Like Facebook or Twitter, Yik Yak is a social media network, only without user profiles. It does not sort messages according to friends or followers but by geographic location or, in many cases, by university. Only posts within a 1.5-mile radius appear, making Yik Yak well suited to college campuses. Think of it as a virtual community bulletin board - or maybe a virtual bathroom wall at the student union. It has become the go-to social feed for college students across the country to commiserate about finals, to find a party or to crack a joke about a rival school.
Much of the chatter is harmless. Some of it is not.
"Yik Yak is the Wild West of anonymous social apps," said Danielle Keats Citron, a law professor at University of Maryland and the author of "Hate Crimes in Cyberspace." "It is being increasingly used by young people in a really intimidating and destructive way."
"With Twitter and other microblogging platforms, teachers from elementary schools to universities are setting up what is known as a "backchannel" in their classes. The real-time digital streams allow students to comment, pose questions (answered either by one another or the teacher) and shed inhibitions about voicing opinions. Perhaps most importantly, if they are texting on-task, they are less likely to be texting about something else."