I made a post about them a while back, but apparently it went ignored because I still get emailed several times a day about them. The short of it is, I have hired people to rebuild the site, and they are doing what they can to solve it.
If you want to help me get rid of them, this is what my tech guys sent me on the matter;
“To be short, can you get a copy of the source code (or just a saved page) when the spam pops in, we cannot for the life of us get it down here and from what Matt and I can tell, it’s insertion at a higher level than your website.”
It’s a problem that randomly pops up and goes away and only a handful of people see. I myself have never come across the spam links in any browser or system, but if you see them you can help me out by getting a copy of the source code.