This TED Talk by Gary Wilson, "The Great Porn Experiment," is a relatively new resource that examines the effects of internet porn on consumers. (Erectile Dysfunction in young, otherwise healthy men is the most striking one, but the breadth and depth of distressing side-effects will amaze you.) He adds credence to his case by showing how abstaining from porn ameliorates these symptoms. Gary is an engaging teacher. The slide show that illustrates his talk drives home his points superbly. Although he has lots of fun with the topic, his big heart shines through and his deep care for men stuck in a porn rut is unmistakable. (from here)
Gary is host of www.yourbrainonporn.com. The site arose in response to a growing demand for solid scientific information by heavy Internet erotica users experiencing perplexing, unexpected effects: escalation to more extreme material, concentration difficulties, sexual performance problems, radical changes in sexual tastes, social anxiety, irritability, inability to stop, and obsessive-compulsive symptoms.
As a physiology teacher with a particular interest in the latest neuroscience discoveries, Gary was aware that their symptoms might be the result of addiction-related brain changes. Applying the website's concepts of brain plasticity, many former users have braved withdrawal, reversed their symptoms and restored normal sexual responsiveness.
The site has been linked to from hundreds of threads in forums from over thirty countries, with posts numbering in the thousands. Gary blogs for "Psychology Today" and "The Good Men Project" on the extreme plasticity of adolescent brains, the evolutionary context for today's flood of novel cyber "mates," and the neurochemical reasons why superstimulating Internet delivery has unexpected effects on the brain.