I did a little research - Infolinks seems to be a legitimate advertising company, but it's still annoying. After a quick scan of my system, I did click the little question mark on the pop-up which (as expected) took me to Infolink's page. At the bottom there's a link to click that says 'I don't want to see ads on this site.' I've not seen any pop-ups since. I'm also re-scanning my system just to make sure.

Renderosity, if you are working with Infolinks, you might want to reconsider.... Just sayin' ?

"I reject your reality and substitute my own" - Adam Savage