Dood

When I'm reviewing tgp sites after someone complains of viruses on them and I'm randomly clicking on gallery links, sometimes I get redirected to sites like ga31.com n-uud.com 008k.com and their all full of virus and erase the back button history. But then I click on the same link again later and it sends me to the gallery.

Is this something the tgp owners are signing up for and sending traffic there to make money or what's going on?

I can't find any redirecting from in the galleries code and the tpg owners swear they're not doing it nor can they even find the redirection to these bad sites.

I'm not infected with spyware/malware/whaterer ware. I've checked everyway possible.