Block ads on the entire Windows system [Spotify Bonus]
Links: http://winhelp2002.mvps.org/hosts.txt
/ comprehensive_guide_to_blocking_ads_on_spo...
With this you can get adblock in every program except for just your browsers. There's a catch though: their placeholders will stay. But it's good enough to block them and make the pages not load at all.
And with the Spotify one, you can skip songs an unlimited number of times and not have to bear through their ads.