Fast Learner said:I use the free version of Popup Stopper -- seems to work pretty well. I only wish I could identify specific sites where I don't want it to block popups (they're few and far between, but they're important, so I have to double-click the icon in the system tray to turn it off or control-click the link if I know it's going to generate a popup I want).
http://www.panicware.com/