Gone are the days of the nameless, faceless "john." Men who buy sex are now likely to end up with their faces splashed across the Internet or the morning newspaper.

A Maine tourist town shaken up by authorities' promises to reveal the identities of dozens of clients of a fitness instructor accused of prostitution is just the latest place to enlist public shaming as a preventive measure.

Fresno, Calif., sponsors a website called "Operation Reveal" that features mug shots of suspected johns, while Oklahoma City has the vigilante-style "JohnTV." In Arlington, Texas, a highway billboard declares "This could be you" under the picture of four suspects.