WEB: Stupid sodding pop-up windows!

I'm sure there must be plenty of other people who find these things INCREDIBLY annoying? I'm talking about the sort of pop-up that whenever there is a relevant word on a web page it appears double underlined. Then, if you are 'lucky' enough to move your mouse over said word a stupid sodding Java box opens on screen with some irritating, tenuously linked information or advert to do with the word.
The worrying trend is that I see more and more sites using these and it's driving me to distraction.
NO! NO! NO! - Stop doing it right now!