Miss C,
To block pop-ups -- and clear history, run multitabs, and lots of other cool stuff -- get
AvantBrowser. With it, I can surf freewareppc.com, about.com, and other sites littered with pop-ups with ease! There's even a little
zzt-zzt sound to confirm another zapped ad! :D
It's free/donate ware.
--RHYNO