Scammers are buying google keywords for "ESTA" (the pre-authorization for visa waiver program to travel to the USA) so their fake sites come up on Google. They then try and charge a registration fee, when in fact registration is free. An example site is http://www.esta.us/

There is a site explaining how it works here, http://www.estascams.com, looks like it's being run out of Korea.

Obviously FTers being the sceptical and intelligent folk they are would never fall for this. But your friends and family just might, mine just did