The first time you heard the word "troll," it was likely in the context of folklore or fairytale—a gruesome, mythical creature hiding under a bridge or in a cave to terrorize passing people or goats. But now you probably hear the word "troll" all the time. We use "trolling...

What exactly is online trolling? How do trolls “behave”? Do they intend to harm, or amuse? For one thing, we know it's changed a LOT in 15 years.