Some portals to infidelity are more problematic than others:

A New Jersey pastor who banned church staff from using Facebook, claiming it leads to infideity, admitted to having group sex with his wife and another couple. Last week, Rev Cedric Miller told 50 church leaders at the Living Word Christian Fellowship church in Neptune, N.J., to delete their Facebook accounts or resign from their jobs. He called the social networking site a “portal to infidelity,” and said he'd seen many marriages fall apart after one partner rekindled romance with an ex on the site. Neptune's Asbury Park Press recently revealed that Miller admitted to having sex with his wife, a church assistant and the assistant's wife during a 2003 court testimony.