Facebook has become such a pervasive force in modern society that increasing numbers of employers, and even some psychologists, believe people who aren't on social networking sites are 'suspicious.'
The German magazine Der Taggspiegel went so far as to point out that accused theater shooter James Holmes and Norwegian mass murder Anders Behring Breivik have common ground in their lack of Facebook profiles.
On a more tangible level, Forbes.com reports that human resources departments across the country are becoming more wary of young job candidates who don't use the site.