I could definitely be misnaming the offending program...but it's not just a pop-up as it "popped up" several times over the past few nights and not just when I was at Hugh's site. I've run both of those programs and it didn't seem to fix the problem as well as I'd like.
For now, though, I'm going to avoid Hugh's site for a few days in hopes this gets fixed.
Oh, FWIW: Vonage has apparently had to plead and plead that it doesn't advertise with Spyware and the like (or that it doesn't fund it) so I know that, on some level at least, I'm not crazy.
IE7 blocked successfully a pop up at Hugh's website.
As already stated perhaps you picked up some adware somewhere.