Trolls participate in disruptive, sometimes malicious online behavior with the goal of provoking a reaction. Typically, they act for their own entertainment and believe nothing they say or do online should be taken seriously. The line between trolling and harassment is blurry and unsettled, a common topic of debate amongst everyone from academics to the trolls themselves.

This Facebook group will respond to racist trolls on your behalf—but it’s not a perfect solution
Don't have the emotional energy to reply to jerks? Let these white people do it for you.
Martin Shkreli’s bail revoked after dumb Facebook threat
Martin Shkreli is being held until sentencing.
12 things you never knew about 8chan, the controversial message board
Is the messaging board as bad as it seems?
8chan trolls dox @YesYoureRacist, the Twitter account doxing neo-Nazis
@YesYoureRacist's efforts went viral after Charlottesville.
Don’t worry everyone, InfoWars’ Paul Joseph Watson doesn’t actually eat books
Waston probably thinks the MSM should go back to the books.
4chan is hunting for Shia LaBeouf’s secret livestream location—again
4chan has caught him four times before. Can they do it again?