A while back, I had disabled my pop-up blocker for this place because it gets in the way of posting and clicking on links. Recently, there have been a cascade of pop-ups, so I re-enabled it, and discovered that a lot of the spurious "links" went away.

As an example, in Jenn's post below titled "re:AVG is keeping it under control", with the pop-up blocker disabled, the words "operating system" in her text were underlined in green. When I placed the mouse over the phrase, it acquired a yellow highlight, and gave me some information about an organization I had never heard of.

It's gone now, and not causing any trouble. And this kind of this has only happened here, even though I have the pop-up blocker disabled on several other sites. Any ideas about what it might be?