Anorexia websites are a growing phenomenon, and now they are spreading the social media.

Facebook is rapidly becoming the site of choice. Why? Because it’s the “most personable,” as opposed to MySpace which is “famous for creepy old men.”

It’s causing some tension on the site, especially with anti-anorexia groups, which “actively hunt down pro-anorexia groups, and then lobby Facebook authorities to delete them.” Apparently, there’s an active Facebook team that deletes the so-called “pro-ana” groups, along with those promoting everything from bigotry to self-mutilation.

Supporters say it provides invaluable support to those suffering from anorexia, but some studies say that the more pro-ana sites you see, the higher your risk for developing an eating disorder.