Definition of a troll - psychologically why and how

Many people claim they can psychologically determine the definition of a troll, but how many of them have actually asked a troll why they troll?

The Psychology of Trolling

The Psychology of Online Trolling, by Dr. Jonathan N. Stea, Digital Diplomacy

The Psychology Behind Trolling – Amanda Reed Writes

Psychology of internet trolls: They understand what hurts people but simply don't care - ABC News

Science: evidence is intelligence - It's Official! Study Confirms That Trolls Are Horrible People: 'An Internet troll is someone who comes into a discussion and posts comments designed to upset or disrupt

Psychology Of The Web Troll Tales Of Mere Existence

Dark Trolls: A Psychological Profile

Examples of trolling behavior. a An example of a vulnerable comment. b

What is Trolling?

The True Nature of an Internet Troll - Nautilus