Every browser has a way or extension to block advertisements these days. Opera's the only one where that functionality comes built-in as far as I've noticed, though.
Sadly, the Web is not without its share of annoyances nowadays - pop ups and unders, Flash ads, seizure-inducing banners, tracking cookies of all flavors. If ads on every site were like here on FST, i.e. simple banners that don't distract you from browsing, I'd gladly turn my ad blocker off.
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