Facebook has many benefits for those interested in internet marketing. It takes, for instance, a distinctively positive approach to engagement - making 'friends' and 'liking' products and businesses is straightforward, but there has been no quick-and-easy way to express darker emotions.
Dean Terry hopes to change all that with his new Facebook app, EnemyGraph.
As reported in an article published on PC Magazine's website, EnemyGraph allows users to choose the people, brands, places and businesses that they consider to be an 'enemy'.
The app, described by Terry as "a kind of social media blasphemy", is designed to track 'social dissonance' on the site - in direct opposition to Facebook's ongoing plan to quantify affinities between its users.
In a similar manner to Twitter, the app displays current social trends, but in the case of EnemyGraph, the trends are not frequently-discussed topics but 'trending enemies' that have been frequently named in recent days.
The app also keeps track of the top-five enemies listed by users. The list is currently headed by Rick Santorum, the Republican hopeful in the American presidential race, who has been listed by 276 users. He is followed closely by the Westboro Baptist Church, with 247 designations.
The other lucky 'enemies' to make the top five are Fox News, Justin Bieber and Internet Explorer.
In a blog post introducing the app - released last month - Terry revealed the reasons behind the creation of EnemyGraph: "Most social networks attempt to connect people based on affinities - you like a certain band or film or sports team, I like them, therefore we should be friends.
"But people are also connected and motivated by things they dislike. Alliances are created, conversations are generated, friendships are stressed, stretched, and/or enhanced."
One criticism raised in the PC Magazine article was that EnemyGraph could provide a convenient platform for cyberbullies. However, Terry stressed that the app would be carefully monitored for abuse by its developers.
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