Police crime tape marks the scene where a 16-year-old boy was shot and killed and an 18-year-old man was wounded in April in Chicago. The grim milestone of 500 homicides already passed this year in Chicago. Joshua Lott/Getty Images hide caption

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In Effort To Curb Violence In Chicago, A Professor Mines Social Media

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Why Your Facebook Habit At Work Makes Economists Worry

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Groups Worry About Impact Of Police Moves To Block Social Media

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Nextdoor CEO Nirav Tolia says a pilot project using algorithms to check for racially charged terms has helped cut racial profiling posts by roughly 50 percent. Drew Angerer/Getty Images hide caption

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Social Network Nextdoor Moves To Block Racial Profiling Online

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Silicon Valley engineer Bindu Reddy created the new social network Candid that facilitates online conversations without trolls. Courtesy of Bindu Reddy hide caption

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Can Candid Conversations Happen Online Without The Trolls?

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Managing Your News Intake In The Age Of Endless Phone Notifications

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In a post on Facebook CEO Mark Zuckerberg wrote that the live-streamed images following a police shooting in Minnesota were "graphic and heartbreaking." Josh Edelson/AFP/Getty Images hide caption

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In Wake Of Shootings, Facebook Struggles To Define Hate Speech

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This photo provided by Rep. John Yarmuth, D-Ky., shows Democrat members of Congress, including Rep. John Lewis, D-Ga., (center) and Rep. Joe Courtney, D-Conn., (left) participating in a sit-down protest seeking a vote on gun control measures, Wednesday on the House floor. Rep. John Yarmuth/AP hide caption

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Marina Lonina, 18, is accused of live-streaming the alleged rape of a 17-year-old female friend. Franklin County, Ohio, Sheriff's Office/AP hide caption

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Live-Streaming Of Alleged Rape Shows Challenges Of Flagging Video In Real Time

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Facebook CEO Mark Zuckerberg talks about the company's 10-year road map during his keynote address Tuesday at the F8 Facebook Developer Conference in San Francisco. Eric Risberg/AP hide caption

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Facebook's New Master Plan: Kill Other Apps

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When You Become The Person You Hate On The Internet

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The Benicia Compliments page sprang up on Instagram as a platform for girls attending Benicia High School to tag each other in positive social media posts. Shawn Wen/Youth Radio hide caption

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Teen Girls Flip The Negative Script On Social Media

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