ab-so-loot-ly.
I kills pop-ups, but more importantly, it kills trackers.
From what I have seen, the ads themselves, or the site hosting the ad, have trackers attached.
This site often has a paypal cookie attached, but not this morning.
Evilbait, paypal, google, yahoo, not one of them has any right to track me.
Any free program I can find that stops it, I use.
Ghostery is great.
Take BCF. Separate ads, no pop-ups of floaters.....I had one site I used to use for business, had overlays. Every time we figured out how to kill them, they changed the coding and it came back. So, I cancelled my ad and left. But here, you can click if you want, they don't pop up all over the place.
Facebook.
Good example of gross stupidity in action.
All the recent changes (that nobody wanted) ended up with free software called Fluff-Busting Purity (FBP), that can be tailored to completely kill every ad they put up (play with the pages, no more income), plus brings you back where it used to be (no ticker, chat, groupings, and all that BS).
If I accidentally click on an ad on some website, Ghostery pops up and tells me which tracking cookie is there, and that it has been blocked.
You can open the ad, and it will not track you.
With all the changes these invasive designers keep trying, I am guessing this year I may have to find something else, and stronger to add to my repertoire.