Trending talks to Gianluca Stringhini, associate professor at University College London. His team has been looking into fringe internet groups – they’ve found that some far-right websites and message boards have a disproportionate impact on the memes that spread on mainstream social networks.

Presenter: Mike Wendling

Producer: Anisa Subedar

Studio Manager: Mike Wooley

Picture Caption: One example of the “Distracted Boyfriend” meme

Picture Credit: Getty/iStock/BBC