Sam - let's call our interviewee Sam, it's suitably anonymous - lives in a three-bedroom semi-detached house in London, drives a vintage Jaguar and runs his own company. But "it's not not all rock and roll and big money", says Sam. What isn't? Spamming websites and blogs with text to pump up the search engine rankings of sites pushing PPC (pills, porn and casinos), that's what. For that's what Sam does, pretty much all day long. He - we'll use the male notation, it's easier - would do this anyway for fun, but it's more than fun; he says he can earn seven-figure sums doing this. Sam is a link spammer. He's unapologetic about it. Skilled in Perl, LWP and PHP, Sam's first professional programming was done aged 13, when he sold some code to a gaming company.